DK46440C - Coupling device for Repeating Current Pulses at Telephone systems. - Google Patents

Coupling device for Repeating Current Pulses at Telephone systems.

Info

Publication number
DK46440C
DK46440C DK46440DA DK46440C DK 46440 C DK46440 C DK 46440C DK 46440D A DK46440D A DK 46440DA DK 46440 C DK46440 C DK 46440C
Authority
DK
Denmark
Prior art keywords
coupling device
current pulses
telephone systems
repeating current
repeating
Prior art date
Application number
Other languages
Danish (da)
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Application granted granted Critical
Publication of DK46440C publication Critical patent/DK46440C/en

Links

DK46440D 1928-05-12 1929-05-11 Coupling device for Repeating Current Pulses at Telephone systems. DK46440C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE46440X 1928-05-12

Publications (1)

Publication Number Publication Date
DK46440C true DK46440C (en) 1932-11-07

Family

ID=20264655

Family Applications (1)

Application Number Title Priority Date Filing Date
DK46440D DK46440C (en) 1928-05-12 1929-05-11 Coupling device for Repeating Current Pulses at Telephone systems.

Country Status (1)

Country Link
DK (1) DK46440C (en)

Similar Documents

Publication Publication Date Title
DK45930C (en) Device for Checking the Switching Process at Telephone Systems Using AC Pulses.
DK40696C (en) Device for Shafting Shovels.
DK44977C (en) Terminal Pipe Connection Device.
DK46793C (en) Device for Checking the Coupling Process at Telephone Systems.
DK44854C (en) Coupling device for Subscriber devices for automatic Telephone systems.
DK44758C (en) Device by Telephone Systems.
DK45469C (en) Device for fully or semi-automatic Telephone Systems.
DK46602C (en) Device for Telephone Systems for the Transmission of Selection Pulses over Duplicate Wires.
DK45439C (en) Circuit arrangement for fully or semi-automatic Telephone systems.
DK41848C (en) Slide Generating Device.
DK40817C (en) Device for Printing Objects.
DK45289C (en) Device for Determining the Duration of Telephone Calls.
DK41455C (en) Device by Telephone Systems.
DK43009C (en) Device by Telephone Systems.
DK44187C (en) Automatic Telephone System.
DK45973C (en) Register for fully or semi-automatic Telephone Systems.
DK47274C (en) Coupling device for Telephone system.
ES109571A2 (en) Call selection device for successive impulses.
ES99048A1 (en) Improvements in automatic telephone systems.
DK45090C (en) Circuit arrangement for fully or semi-automatic Telephone Systems.
DK43054C (en) Coupling device for transmitting select pulses through telephone lines.
DK41152C (en) Selector for fully or semi-automatic Telephone Systems.
DK40305C (en) Device for cleaning metal objects.
DK46657C (en) Circuit device for automatic Telephone Systems.
DK45359C (en) Circuit Device for Automatic Telephone Systems.