CA117555A - Telephone system - Google Patents

Telephone system

Info

Publication number
CA117555A
CA117555A CA000117555A CA117555DA CA117555A CA 117555 A CA117555 A CA 117555A CA 000117555 A CA000117555 A CA 000117555A CA 117555D A CA117555D A CA 117555DA CA 117555 A CA117555 A CA 117555A
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
CA000117555A
Other languages
French (fr)
Inventor
Homer J. Roberts
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 CA117555A publication Critical patent/CA117555A/en
Expired legal-status Critical Current

Links

CA000117555A 1907-04-22 1907-04-22 Telephone system Expired CA117555A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA117555T 1907-04-22

Publications (1)

Publication Number Publication Date
CA117555A true CA117555A (en) 1909-03-30

Family

ID=45237279

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000117555A Expired CA117555A (en) 1907-04-22 1907-04-22 Telephone system

Country Status (1)

Country Link
CA (1) CA117555A (en)

Similar Documents

Publication Publication Date Title
CA107303A (en) Telephone system
CA117555A (en) Telephone system
CA112942A (en) Telephone system
CA109269A (en) Telephone system
CA106746A (en) Telephone
CA109271A (en) Telephone
CA115372A (en) Microphone
CA110208A (en) Telephone drop
CA106734A (en) Telegraph system
CA104773A (en) Hand telephone
CA107215A (en) Telephone receiver
CA116509A (en) Telephone apparatus
AU840207A (en) Improvements in telephone systems
CA105201A (en) Block
CA112224A (en) Telephone transmitter
CA107301A (en) Telephone transmitter
CA113432A (en) Telephone transmitter
CA101617A (en) Telephone system
CA98217A (en) Telephone system
CA111966A (en) Cipher system
CA106878A (en) Telephone exchange
CA108561A (en) Microphone
CA105676A (en) Pumping system
CA104336A (en) Telegraphone
CA110314A (en) Self-igniter