CA224780A - Systeme telephonique selectif - Google Patents

Systeme telephonique selectif

Info

Publication number
CA224780A
CA224780A CA224780A CA224780DA CA224780A CA 224780 A CA224780 A CA 224780A CA 224780 A CA224780 A CA 224780A CA 224780D A CA224780D A CA 224780DA CA 224780 A CA224780 A CA 224780A
Authority
CA
Canada
Prior art keywords
telephone system
selective telephone
selective
telephone
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
CA224780A
Other languages
English (en)
Inventor
C. M. Hastings Ruben
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 CA224780A publication Critical patent/CA224780A/fr
Expired legal-status Critical Current

Links

CA224780A Systeme telephonique selectif Expired CA224780A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA224780T

Publications (1)

Publication Number Publication Date
CA224780A true CA224780A (fr) 1922-10-17

Family

ID=35120383

Family Applications (1)

Application Number Title Priority Date Filing Date
CA224780A Expired CA224780A (fr) Systeme telephonique selectif

Country Status (1)

Country Link
CA (1) CA224780A (fr)

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