CA522332A - Telephone systems - Google Patents

Telephone systems

Info

Publication number
CA522332A
CA522332A CA522332A CA522332DA CA522332A CA 522332 A CA522332 A CA 522332A CA 522332 A CA522332 A CA 522332A CA 522332D A CA522332D A CA 522332DA CA 522332 A CA522332 A CA 522332A
Authority
CA
Canada
Prior art keywords
telephone systems
telephone
systems
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
CA522332A
Other languages
French (fr)
Inventor
E. Ostline John
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.)
Automatic Electric Laboratories Inc
Original Assignee
Automatic Electric Laboratories Inc
Publication date
Application granted granted Critical
Publication of CA522332A publication Critical patent/CA522332A/en
Expired legal-status Critical Current

Links

CA522332A Telephone systems Expired CA522332A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA522332T

Publications (1)

Publication Number Publication Date
CA522332A true CA522332A (en) 1956-03-06

Family

ID=35675562

Family Applications (1)

Application Number Title Priority Date Filing Date
CA522332A Expired CA522332A (en) Telephone systems

Country Status (1)

Country Link
CA (1) CA522332A (en)

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