CA504359A - Telephone ringer - Google Patents

Telephone ringer

Info

Publication number
CA504359A
CA504359A CA504359A CA504359DA CA504359A CA 504359 A CA504359 A CA 504359A CA 504359 A CA504359 A CA 504359A CA 504359D A CA504359D A CA 504359DA CA 504359 A CA504359 A CA 504359A
Authority
CA
Canada
Prior art keywords
telephone ringer
ringer
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
CA504359A
Other languages
French (fr)
Inventor
A. Bredehoft Harold
S. Richardson Max
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 CA504359A publication Critical patent/CA504359A/en
Expired legal-status Critical Current

Links

CA504359A Telephone ringer Expired CA504359A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA504359T

Publications (1)

Publication Number Publication Date
CA504359A true CA504359A (en) 1954-07-13

Family

ID=35650280

Family Applications (1)

Application Number Title Priority Date Filing Date
CA504359A Expired CA504359A (en) Telephone ringer

Country Status (1)

Country Link
CA (1) CA504359A (en)

Similar Documents

Publication Publication Date Title
CA594682A (en) Telephone answering service
CA504359A (en) Telephone ringer
CA505833A (en) Loud-speaking telephone arrangements
CA503240A (en) Telephone booth
CA507057A (en) Telephone circuit
AU207720B2 (en) Field telephone handset
CA502243A (en) Telephone instruments
CA501362A (en) Key equipped telephone set
CA508242A (en) Telephone ringing power plant
AU629555A (en) Field telephone handset
CA499356A (en) Telephone systems
CA501321A (en) Telephone systems
CA502236A (en) Telephone systems
CA502238A (en) Telephone systems
CA502239A (en) Telephone systems
CA506411A (en) Telephone systems
CA507617A (en) Telephone systems
CA497260A (en) Subscriber telephone set
CA505875A (en) Calling dial device
CA500363A (en) Mobile telephone systems
CA500087A (en) Telephone substation apparatus
CA503239A (en) Telephone substation apparatus
CA488054A (en) Telephone ringer
CA504479A (en) Miniature phone plug
CA521242A (en) Loudspeaking telephone instruments