CA187569A - Telephony system - Google Patents

Telephony system

Info

Publication number
CA187569A
CA187569A CA000187569A CA187569DA CA187569A CA 187569 A CA187569 A CA 187569A CA 000187569 A CA000187569 A CA 000187569A CA 187569D A CA187569D A CA 187569DA CA 187569 A CA187569 A CA 187569A
Authority
CA
Canada
Prior art keywords
telephony system
telephony
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
CA000187569A
Other languages
French (fr)
Inventor
Guiseppe Simonetta
Augusto Rosa
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 CA187569A publication Critical patent/CA187569A/en
Expired legal-status Critical Current

Links

CA000187569A 1918-01-04 1918-01-04 Telephony system Expired CA187569A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA187569T 1918-01-04

Publications (1)

Publication Number Publication Date
CA187569A true CA187569A (en) 1918-11-26

Family

ID=45307220

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000187569A Expired CA187569A (en) 1918-01-04 1918-01-04 Telephony system

Country Status (1)

Country Link
CA (1) CA187569A (en)

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