DK77960C - Coupling to subscriber class marking at signaling systems, in particular telephone systems or telegraph systems. - Google Patents

Coupling to subscriber class marking at signaling systems, in particular telephone systems or telegraph systems.

Info

Publication number
DK77960C
DK77960C DK500447A DK500447A DK77960C DK 77960 C DK77960 C DK 77960C DK 500447 A DK500447 A DK 500447A DK 500447 A DK500447 A DK 500447A DK 77960 C DK77960 C DK 77960C
Authority
DK
Denmark
Prior art keywords
systems
coupling
telegraph
signaling
particular telephone
Prior art date
Application number
DK500447A
Other languages
Danish (da)
Inventor
Roelof Maarten Marie Oberman
Original Assignee
Nederlanden Staat
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 Nederlanden Staat filed Critical Nederlanden Staat
Application granted granted Critical
Publication of DK77960C publication Critical patent/DK77960C/en

Links

DK500447A 1945-09-03 1947-12-29 Coupling to subscriber class marking at signaling systems, in particular telephone systems or telegraph systems. DK77960C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL77960X 1945-09-03

Publications (1)

Publication Number Publication Date
DK77960C true DK77960C (en) 1954-08-16

Family

ID=19758053

Family Applications (1)

Application Number Title Priority Date Filing Date
DK500447A DK77960C (en) 1945-09-03 1947-12-29 Coupling to subscriber class marking at signaling systems, in particular telephone systems or telegraph systems.

Country Status (1)

Country Link
DK (1) DK77960C (en)

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