CA362422A - Operator's telephone circuit - Google Patents

Operator's telephone circuit

Info

Publication number
CA362422A
CA362422A CA362422A CA362422DA CA362422A CA 362422 A CA362422 A CA 362422A CA 362422 A CA362422 A CA 362422A CA 362422D A CA362422D A CA 362422DA CA 362422 A CA362422 A CA 362422A
Authority
CA
Canada
Prior art keywords
operator
telephone circuit
telephone
circuit
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
CA362422A
Other languages
French (fr)
Inventor
Dietze Eginhard
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 CA362422A publication Critical patent/CA362422A/en
Expired legal-status Critical Current

Links

CA362422A Operator's telephone circuit Expired CA362422A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA362422T

Publications (1)

Publication Number Publication Date
CA362422A true CA362422A (en) 1936-12-08

Family

ID=35361761

Family Applications (1)

Application Number Title Priority Date Filing Date
CA362422A Expired CA362422A (en) Operator's telephone circuit

Country Status (1)

Country Link
CA (1) CA362422A (en)

Similar Documents

Publication Publication Date Title
CA362421A (en) Operator's telephone circuit
CA362422A (en) Operator's telephone circuit
CA369497A (en) Ship's telephone
CA360060A (en) Substation telephone circuit
CA367165A (en) Telephone subscriber's substation
AU101267B2 (en) Improved circuit arrangements for telephone or like instruments
AU102293B2 (en) Draughtsman's set square
CA362052A (en) Calling device
CA360408A (en) Telephone system
CA362779A (en) Telephone system
CA355533A (en) Telephone system
CA355534A (en) Telephone system
CA357063A (en) Telephone system
CA357325A (en) Telephone system
CA357789A (en) Telephone system
CA358404A (en) Telephone system
CA358428A (en) Telephone system
CA358429A (en) Telephone system
CA359119A (en) Telephone system
CA359303A (en) Telephone system
CA359304A (en) Telephone system
CA360061A (en) Telephone system
CA360062A (en) Telephone system
CA360077A (en) Telephone system
CA359118A (en) Telephone system