CA664840A - Push button type telephone calling device - Google Patents

Push button type telephone calling device

Info

Publication number
CA664840A
CA664840A CA664840A CA664840DA CA664840A CA 664840 A CA664840 A CA 664840A CA 664840 A CA664840 A CA 664840A CA 664840D A CA664840D A CA 664840DA CA 664840 A CA664840 A CA 664840A
Authority
CA
Canada
Prior art keywords
push button
calling device
button type
telephone calling
type 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
CA664840A
Inventor
Sasaki Rentaro
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry Co Ltd
Publication date
Application granted granted Critical
Publication of CA664840A publication Critical patent/CA664840A/en
Expired legal-status Critical Current

Links

CA664840A Push button type telephone calling device Expired CA664840A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA664840T

Publications (1)

Publication Number Publication Date
CA664840A true CA664840A (en) 1963-06-11

Family

ID=35958960

Family Applications (1)

Application Number Title Priority Date Filing Date
CA664840A Expired CA664840A (en) Push button type telephone calling device

Country Status (1)

Country Link
CA (1) CA664840A (en)

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