CA203292A - Commutateur d'appels telephoniques, etc. - Google Patents

Commutateur d'appels telephoniques, etc.

Info

Publication number
CA203292A
CA203292A CA203292A CA203292DA CA203292A CA 203292 A CA203292 A CA 203292A CA 203292 A CA203292 A CA 203292A CA 203292D A CA203292D A CA 203292DA CA 203292 A CA203292 A CA 203292A
Authority
CA
Canada
Prior art keywords
telephones
selective switch
selective
switch
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
CA203292A
Other languages
English (en)
Inventor
W. Schumacher Matthia
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Publication date
Application granted granted Critical
Publication of CA203292A publication Critical patent/CA203292A/fr
Expired legal-status Critical Current

Links

CA203292A Commutateur d'appels telephoniques, etc. Expired CA203292A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA203292T

Publications (1)

Publication Number Publication Date
CA203292A true CA203292A (fr) 1920-08-24

Family

ID=35077728

Family Applications (1)

Application Number Title Priority Date Filing Date
CA203292A Expired CA203292A (fr) Commutateur d'appels telephoniques, etc.

Country Status (1)

Country Link
CA (1) CA203292A (fr)

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