CA177357A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA177357A
CA177357A CA000177357A CA177357DA CA177357A CA 177357 A CA177357 A CA 177357A CA 000177357 A CA000177357 A CA 000177357A CA 177357D A CA177357D A CA 177357DA CA 177357 A CA177357 A CA 177357A
Authority
CA
Canada
Prior art keywords
telephone system
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
CA000177357A
Other languages
English (en)
Inventor
Elwood Gressinger
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 CA177357A publication Critical patent/CA177357A/fr
Expired legal-status Critical Current

Links

CA000177357A 1917-03-09 1917-03-09 Systeme telephonique Expired CA177357A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA177357T 1917-03-09

Publications (1)

Publication Number Publication Date
CA177357A true CA177357A (fr) 1917-05-29

Family

ID=45297010

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000177357A Expired CA177357A (fr) 1917-03-09 1917-03-09 Systeme telephonique

Country Status (1)

Country Link
CA (1) CA177357A (fr)

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