CA515309A - Audible signal for field telephone set - Google Patents

Audible signal for field telephone set

Info

Publication number
CA515309A
CA515309A CA515309A CA515309DA CA515309A CA 515309 A CA515309 A CA 515309A CA 515309 A CA515309 A CA 515309A CA 515309D A CA515309D A CA 515309DA CA 515309 A CA515309 A CA 515309A
Authority
CA
Canada
Prior art keywords
telephone set
audible signal
field telephone
field
audible
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
CA515309A
Other languages
French (fr)
Inventor
Kalin Walter
R. Power James
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 CA515309A publication Critical patent/CA515309A/en
Expired legal-status Critical Current

Links

CA515309A Audible signal for field telephone set Expired CA515309A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA515309T

Publications (1)

Publication Number Publication Date
CA515309A true CA515309A (en) 1955-08-02

Family

ID=35666400

Family Applications (1)

Application Number Title Priority Date Filing Date
CA515309A Expired CA515309A (en) Audible signal for field telephone set

Country Status (1)

Country Link
CA (1) CA515309A (en)

Similar Documents

Publication Publication Date Title
CA515309A (en) Audible signal for field telephone set
CA544168A (en) Multi-electrode-tube radio-frequency amplifier
CA510609A (en) Audible signal apparatus
CA510649A (en) Casting apparatus
CA516596A (en) Signal devices
CA511064A (en) Telephone transmitters
CA514765A (en) Telephone apparatus
CA518482A (en) Alarm signal station
CA524468A (en) Magnetic sound apparatus
CA518031A (en) Amplifier circuit
CA508831A (en) Call measuring apparatus
AU211880B2 (en) Noise-compensated muting circuit
CA509344A (en) Transducer
CA509345A (en) Transducer
AU203553B2 (en) Transmitting device for telephone signals for use witha telephone set
CA511953A (en) Automatic telephone apparatus
CA520059A (en) Amplitude limiting circuit-arrangement
CA511915A (en) Signal translating apparatus
CA511251A (en) Signal delay device
AU206623B2 (en) An improved buckle
CA523810A (en) Telephone apparatus
CA511555A (en) Chlorosilphenane polymers
CA510732A (en) Telephone circuit
CA511300A (en) Signal slicing circuits
CA509802A (en) Signal slicing circuits