DK21510C - Telephone exchange system. - Google Patents

Telephone exchange system.

Info

Publication number
DK21510C
DK21510C DK21510DA DK21510C DK 21510 C DK21510 C DK 21510C DK 21510D A DK21510D A DK 21510DA DK 21510 C DK21510 C DK 21510C
Authority
DK
Denmark
Prior art keywords
exchange system
telephone exchange
telephone
exchange
Prior art date
Application number
Other languages
Danish (da)
Original Assignee
Bell Telephone Mfg
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 DK21510C publication Critical patent/DK21510C/en

Links

DK21510D 1913-03-06 Telephone exchange system. DK21510C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB21510X 1913-03-06

Publications (1)

Publication Number Publication Date
DK21510C true DK21510C (en) 1916-09-18

Family

ID=27839507

Family Applications (1)

Application Number Title Priority Date Filing Date
DK21510D DK21510C (en) 1913-03-06 Telephone exchange system.

Country Status (1)

Country Link
DK (1) DK21510C (en)

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