CA61988A - Systeme de signal de telephone - Google Patents

Systeme de signal de telephone

Info

Publication number
CA61988A
CA61988A CA000061988A CA61988DA CA61988A CA 61988 A CA61988 A CA 61988A CA 000061988 A CA000061988 A CA 000061988A CA 61988D A CA61988D A CA 61988DA CA 61988 A CA61988 A CA 61988A
Authority
CA
Canada
Prior art keywords
signal system
telephone signal
telephone
signal
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
CA000061988A
Other languages
English (en)
Inventor
Alexander Barneck
Wallace A. Stilwell
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
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of CA61988A publication Critical patent/CA61988A/fr
Expired legal-status Critical Current

Links

CA000061988A 1898-07-08 1898-07-08 Systeme de signal de telephone Expired CA61988A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA61988T 1898-07-08

Publications (1)

Publication Number Publication Date
CA61988A true CA61988A (fr) 1898-12-09

Family

ID=45178526

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000061988A Expired CA61988A (fr) 1898-07-08 1898-07-08 Systeme de signal de telephone

Country Status (1)

Country Link
CA (1) CA61988A (fr)

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