CA417347A - Telephone impulse sender - Google Patents

Telephone impulse sender

Info

Publication number
CA417347A
CA417347A CA417347A CA417347DA CA417347A CA 417347 A CA417347 A CA 417347A CA 417347 A CA417347 A CA 417347A CA 417347D A CA417347D A CA 417347DA CA 417347 A CA417347 A CA 417347A
Authority
CA
Canada
Prior art keywords
impulse sender
telephone
telephone impulse
sender
impulse
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
CA417347A
Other languages
French (fr)
Inventor
Beltrami Vittorio
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 CA417347A publication Critical patent/CA417347A/en
Expired legal-status Critical Current

Links

CA417347A Telephone impulse sender Expired CA417347A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA417347T

Publications (1)

Publication Number Publication Date
CA417347A true CA417347A (en) 1943-12-28

Family

ID=35526592

Family Applications (1)

Application Number Title Priority Date Filing Date
CA417347A Expired CA417347A (en) Telephone impulse sender

Country Status (1)

Country Link
CA (1) CA417347A (en)

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