ES176606A1 - IMPROVEMENTS IN OR RELATING TO ELECTRICAL SIGNAL SYSTEMS - Google Patents

IMPROVEMENTS IN OR RELATING TO ELECTRICAL SIGNAL SYSTEMS

Info

Publication number
ES176606A1
ES176606A1 ES176606A ES176606A ES176606A1 ES 176606 A1 ES176606 A1 ES 176606A1 ES 176606 A ES176606 A ES 176606A ES 176606 A ES176606 A ES 176606A ES 176606 A1 ES176606 A1 ES 176606A1
Authority
ES
Spain
Prior art keywords
relating
electrical signal
signal systems
systems
electrical
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES176606A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Spain SA
Original Assignee
Alcatel Espana SA
Standard Electrica SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alcatel Espana SA, Standard Electrica SA filed Critical Alcatel Espana SA
Publication of ES176606A1 publication Critical patent/ES176606A1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
    • B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
    • B22C1/165—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents in the manufacture of multilayered shell moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/02—Sand moulds or like moulds for shaped castings
    • B22C9/04—Use of lost patterns
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Magnetically Actuated Valves (AREA)
ES176606A 1946-02-05 1947-01-30 IMPROVEMENTS IN OR RELATING TO ELECTRICAL SIGNAL SYSTEMS Expired ES176606A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB278426X 1946-02-05

Publications (1)

Publication Number Publication Date
ES176606A1 true ES176606A1 (en) 1947-03-01

Family

ID=10266183

Family Applications (1)

Application Number Title Priority Date Filing Date
ES176606A Expired ES176606A1 (en) 1946-02-05 1947-01-30 IMPROVEMENTS IN OR RELATING TO ELECTRICAL SIGNAL SYSTEMS

Country Status (6)

Country Link
BE (1) BE473246A (en)
CH (2) CH278426A (en)
ES (1) ES176606A1 (en)
FR (2) FR943719A (en)
GB (2) GB621384A (en)
NL (2) NL130202C (en)

Also Published As

Publication number Publication date
CH278426A (en) 1951-10-15
GB623380A (en) 1949-05-17
GB621384A (en) 1949-04-08
FR55195E (en) 1951-10-02
FR943719A (en) 1949-03-16
BE473246A (en)
CH289745A (en) 1953-03-31
NL279838A (en)
NL130202C (en)

Similar Documents

Publication Publication Date Title
ES176831A1 (en) IMPROVEMENTS IN OR RELATIVE TO TELEGRAPH RECEIVING SYSTEMS
ES179646A1 (en) IMPROVEMENTS IN ELECTRONIC SWITCHING SYSTEMS
ES182283A1 (en) IMPROVEMENTS IN SIGNAL TRANSLATOR SYSTEMS
ES175579A1 (en) IMPROVEMENTS IN OR RELATING TO TIME BASE CIRCUITS
FR1001682A (en) Doorbell
ES176606A1 (en) IMPROVEMENTS IN OR RELATING TO ELECTRICAL SIGNAL SYSTEMS
ES179631A1 (en) IMPROVEMENTS IN SELECTION SYSTEMS
ES172763A3 (en) IMPROVEMENTS IN OR RELATED TO ELECTRICAL SIGNALING SYSTEMS
ES179632A1 (en) IMPROVEMENT IN OR RELATING TO TELECOMMUNICATION CENTRAL SYSTEMS
ES173173A3 (en) IMPROVEMENTS IN OR RELATED TO CIRCUIT ARRANGEMENTS IN TELECOMMUNICATION CENTRAL SYSTEMS
ES175709A3 (en) IMPROVEMENTS IN OR RELATED TO TELEGRAPH SYSTEMS
ES177012A1 (en) IMPROVEMENTS IN OR RELATED TO MECROPHONES
ES170782A1 (en) IMPROVEMENTS IN OR RELATIVE TO DISTANCE ELECTRICAL INDICATION SYSTEMS
FR1002189A (en) Advertising board
ES173060A3 (en) IMPROVEMENTS IN ELECTRICAL CONTROL SYSTEMS
ES173788A3 (en) IMPROVEMENTS IN OR RELATED TO REMOTE CONTROL SYSTEMS
ES177013A1 (en) IMPROVEMENTS IN OR RELATED TO MICROPHONES
ES179644A1 (en) IMPROVEMENTS IN OR RELATIVE TO SIGNALING IN TELEPHONE SYSTEMS
ES175000A1 (en) IMPROVEMENTS IN OR RELATING TO ELECTRICAL METERS
AU129539B2 (en) Improvements in or relating to electrical signalling systems
AU132048B2 (en) Improvements in or relating to signal maintaining circuit
ES174998A1 (en) IMPROVEMENTS IN SIGNAL SYSTEMS
ES179624A1 (en) IMPROVEMENTS IN OR RELATIVE TO TELEGRAPH TRANSMITTERS
ES172378A1 (en) IMPROVEMENTS IN OR RELATED TO FIXING DEVICES
FR935678A (en) Electronic switch