CA503239A - Telephone substation apparatus - Google Patents

Telephone substation apparatus

Info

Publication number
CA503239A
CA503239A CA503239A CA503239DA CA503239A CA 503239 A CA503239 A CA 503239A CA 503239 A CA503239 A CA 503239A CA 503239D A CA503239D A CA 503239DA CA 503239 A CA503239 A CA 503239A
Authority
CA
Canada
Prior art keywords
substation apparatus
telephone substation
telephone
substation
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
CA503239A
Other languages
French (fr)
Inventor
E. Mott Edward
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 CA503239A publication Critical patent/CA503239A/en
Expired legal-status Critical Current

Links

CA503239A Telephone substation apparatus Expired CA503239A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA503239T

Publications (1)

Publication Number Publication Date
CA503239A true CA503239A (en) 1954-05-25

Family

ID=35649148

Family Applications (1)

Application Number Title Priority Date Filing Date
CA503239A Expired CA503239A (en) Telephone substation apparatus

Country Status (1)

Country Link
CA (1) CA503239A (en)

Similar Documents

Publication Publication Date Title
CA500087A (en) Telephone substation apparatus
CA503239A (en) Telephone substation apparatus
CA507235A (en) Cable for use in telephony
CA497261A (en) Telephone substation apparatus
CA517288A (en) Telephone sub-station apparatus
CA514765A (en) Telephone apparatus
CA499413A (en) Electrical apparatus
CA499414A (en) Electrical apparatus
CA501242A (en) Electrical apparatus
CA501243A (en) Electrical apparatus
CA503308A (en) Electrical apparatus
CA503832A (en) Electrical apparatus
CA505495A (en) Electrical apparatus
CA506494A (en) Electrical apparatus
CA507128A (en) Electrical apparatus
CA507129A (en) Electrical apparatus
CA507130A (en) Electrical apparatus
CA507131A (en) Electrical apparatus
CA499204A (en) Switching apparatus
CA501908A (en) Telephone receiving system
CA500086A (en) Switchboards
CA500996A (en) Rectifier-powered equipment
CA506760A (en) Telemeteric apparatus
CA500232A (en) Door-controlled railway-control apparatus
AU206959B2 (en) Color-image-reproducing apparatus