DK20713C - Coupling device for automatic or semi-automatic Telephone systems. - Google Patents

Coupling device for automatic or semi-automatic Telephone systems.

Info

Publication number
DK20713C
DK20713C DK20713DA DK20713C DK 20713 C DK20713 C DK 20713C DK 20713D A DK20713D A DK 20713DA DK 20713 C DK20713 C DK 20713C
Authority
DK
Denmark
Prior art keywords
automatic
semi
coupling device
telephone systems
automatic telephone
Prior art date
Application number
Other languages
Danish (da)
Original Assignee
Betulander Automatic Telephone
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.)
Publication date
Application granted granted Critical
Publication of DK20713C publication Critical patent/DK20713C/en

Links

DK20713D 1912-12-24 Coupling device for automatic or semi-automatic Telephone systems. DK20713C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE20713X 1912-12-24

Publications (1)

Publication Number Publication Date
DK20713C true DK20713C (en) 1915-11-01

Family

ID=28036528

Family Applications (1)

Application Number Title Priority Date Filing Date
DK20713D DK20713C (en) 1912-12-24 Coupling device for automatic or semi-automatic Telephone systems.

Country Status (1)

Country Link
DK (1) DK20713C (en)

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