CA505485A - Automatic telephone systems - Google Patents

Automatic telephone systems

Info

Publication number
CA505485A
CA505485A CA505485A CA505485DA CA505485A CA 505485 A CA505485 A CA 505485A CA 505485 A CA505485 A CA 505485A CA 505485D A CA505485D A CA 505485DA CA 505485 A CA505485 A CA 505485A
Authority
CA
Canada
Prior art keywords
telephone systems
automatic telephone
automatic
systems
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
CA505485A
Other languages
French (fr)
Inventor
L. Horwitz Henry
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.)
International Telephone and Telegraph Corp
Original Assignee
International Telephone and Telegraph Corp
Publication date
Application granted granted Critical
Publication of CA505485A publication Critical patent/CA505485A/en
Expired legal-status Critical Current

Links

CA505485A Automatic telephone systems Expired CA505485A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA505485T

Publications (1)

Publication Number Publication Date
CA505485A true CA505485A (en) 1954-08-31

Family

ID=35651408

Family Applications (1)

Application Number Title Priority Date Filing Date
CA505485A Expired CA505485A (en) Automatic telephone systems

Country Status (1)

Country Link
CA (1) CA505485A (en)

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