FR456985A - Diaphragme électro-pneumatique - Google Patents

Diaphragme électro-pneumatique

Info

Publication number
FR456985A
FR456985A FR456985A FR456985DA FR456985A FR 456985 A FR456985 A FR 456985A FR 456985 A FR456985 A FR 456985A FR 456985D A FR456985D A FR 456985DA FR 456985 A FR456985 A FR 456985A
Authority
FR
France
Prior art keywords
electro
pneumatic diaphragm
diaphragm
pneumatic
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
FR456985A
Other languages
English (en)
Inventor
Curt Stille
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR456985A publication Critical patent/FR456985A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/42—Combinations of transducers with fluid-pressure or other non-electrical amplifying means

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Telephone Set Structure (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Electromagnets (AREA)
FR456985A 1912-04-24 1913-04-23 Diaphragme électro-pneumatique Expired FR456985A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE287865T 1912-04-24

Publications (1)

Publication Number Publication Date
FR456985A true FR456985A (fr) 1913-09-09

Family

ID=6059598

Family Applications (1)

Application Number Title Priority Date Filing Date
FR456985A Expired FR456985A (fr) 1912-04-24 1913-04-23 Diaphragme électro-pneumatique

Country Status (4)

Country Link
DE (2) DE287865C (fr)
FR (1) FR456985A (fr)
GB (2) GB191309644A (fr)
NL (1) NL1734C (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2967094B2 (ja) * 1995-11-02 1999-10-25 工業技術院長 窒化アルミニウム焼結体、及び窒化アルミニウム粉末の製造方法

Also Published As

Publication number Publication date
NL1734C (nl) 1916-12-01
GB191309644A (en) 1913-07-24
GB191510669A (en) 1921-07-11
DE287865C (de) 1915-10-06
DE288502C (de) 1915-11-03

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