CA224780A - Selective telephone system - Google Patents

Selective telephone system

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
French (fr)
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/en
Expired legal-status Critical Current

Links

CA224780A Selective telephone system Expired CA224780A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA224780T

Publications (1)

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

Family

ID=35120383

Family Applications (1)

Application Number Title Priority Date Filing Date
CA224780A Expired CA224780A (en) Selective telephone system

Country Status (1)

Country Link
CA (1) CA224780A (en)

Similar Documents

Publication Publication Date Title
CA224780A (en) Selective telephone system
CA217218A (en) Telephone system
CA222141A (en) Telephone system
CA220458A (en) Telephone system
CA220170A (en) Telephone system
CA215088A (en) Telephone system
CA215090A (en) Telephone system
CA215091A (en) Telephone system
CA215093A (en) Telephone system
CA215094A (en) Telephone system
CA220102A (en) Telephone system
CA227471A (en) Telephone system
CA227462A (en) Telephone system
CA222508A (en) Telephone system
CA216524A (en) Telephone system
CA221433A (en) Telephone system
CA220744A (en) Telephone system
CA215097A (en) Telephone system
CA215098A (en) Telephone system
CA216058A (en) Telephone system
CA219454A (en) Telephone system
CA219453A (en) Telephone system
CA218937A (en) Telephone system
CA218025A (en) Telephone system
CA218023A (en) Telephone system