DK23804C - Signal system for Telephone systems. - Google Patents

Signal system for Telephone systems.

Info

Publication number
DK23804C
DK23804C DK23804DA DK23804C DK 23804 C DK23804 C DK 23804C DK 23804D A DK23804D A DK 23804DA DK 23804 C DK23804 C DK 23804C
Authority
DK
Denmark
Prior art keywords
signal system
telephone systems
telephone
systems
signal
Prior art date
Application number
Other languages
Danish (da)
Original Assignee
Bel Telephone Mfg Company
Publication date
Application granted granted Critical
Publication of DK23804C publication Critical patent/DK23804C/en

Links

DK23804D Signal system for Telephone systems. DK23804C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK23804T

Publications (1)

Publication Number Publication Date
DK23804C true DK23804C (en) 1918-12-02

Family

ID=33039849

Family Applications (1)

Application Number Title Priority Date Filing Date
DK23804D DK23804C (en) Signal system for Telephone systems.

Country Status (1)

Country Link
DK (1) DK23804C (en)

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