DK53758C - Coupling device for Telephone systems with Main and Sub-exchanges. - Google Patents

Coupling device for Telephone systems with Main and Sub-exchanges.

Info

Publication number
DK53758C
DK53758C DK53758DA DK53758C DK 53758 C DK53758 C DK 53758C DK 53758D A DK53758D A DK 53758DA DK 53758 C DK53758 C DK 53758C
Authority
DK
Denmark
Prior art keywords
exchanges
sub
main
coupling device
telephone systems
Prior art date
Application number
Other languages
Danish (da)
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Application granted granted Critical
Publication of DK53758C publication Critical patent/DK53758C/en

Links

DK53758D 1935-06-27 1936-01-31 Coupling device for Telephone systems with Main and Sub-exchanges. DK53758C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE53758X 1935-06-27

Publications (1)

Publication Number Publication Date
DK53758C true DK53758C (en) 1937-10-25

Family

ID=5627775

Family Applications (1)

Application Number Title Priority Date Filing Date
DK53758D DK53758C (en) 1935-06-27 1936-01-31 Coupling device for Telephone systems with Main and Sub-exchanges.

Country Status (1)

Country Link
DK (1) DK53758C (en)

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