CA320902A - Telephone indicating and recording system - Google Patents

Telephone indicating and recording system

Info

Publication number
CA320902A
CA320902A CA320902A CA320902DA CA320902A CA 320902 A CA320902 A CA 320902A CA 320902 A CA320902 A CA 320902A CA 320902D A CA320902D A CA 320902DA CA 320902 A CA320902 A CA 320902A
Authority
CA
Canada
Prior art keywords
recording system
telephone indicating
telephone
indicating
recording
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
CA320902A
Other languages
French (fr)
Inventor
Frederick Dahl Jack
Churchill Davis Richard
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
Publication date
Application granted granted Critical
Publication of CA320902A publication Critical patent/CA320902A/en
Expired legal-status Critical Current

Links

CA320902A Telephone indicating and recording system Expired CA320902A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA320902T

Publications (1)

Publication Number Publication Date
CA320902A true CA320902A (en) 1932-03-22

Family

ID=35281456

Family Applications (1)

Application Number Title Priority Date Filing Date
CA320902A Expired CA320902A (en) Telephone indicating and recording system

Country Status (1)

Country Link
CA (1) CA320902A (en)

Similar Documents

Publication Publication Date Title
CA320902A (en) Telephone indicating and recording system
CA354331A (en) Recording and reproducing telephone system
CA327516A (en) Telephone testing system
CA320328A (en) Visible record system
CA326675A (en) Recording and reproducing system
CA318634A (en) Telephone system
CA318635A (en) Telephone system
CA318894A (en) Telephone system
CA318925A (en) Telephone system
CA319235A (en) Telephone system
CA319312A (en) Telephone system
CA319338A (en) Telephone system
CA320421A (en) Telephone system
CA320533A (en) Telephone system
CA322319A (en) Telephone system
CA322320A (en) Telephone system
CA325369A (en) Telephone system
CA325403A (en) Telephone system
CA325698A (en) Telephone system
CA325782A (en) Telephone system
CA326405A (en) Telephone system
CA326434A (en) Telephone system
CA326756A (en) Telephone system
CA326981A (en) Telephone system
CA326982A (en) Telephone system