CA598747A - Three terminal telephone substation and system embodying the same - Google Patents

Three terminal telephone substation and system embodying the same

Info

Publication number
CA598747A
CA598747A CA598747A CA598747DA CA598747A CA 598747 A CA598747 A CA 598747A CA 598747 A CA598747 A CA 598747A CA 598747D A CA598747D A CA 598747DA CA 598747 A CA598747 A CA 598747A
Authority
CA
Canada
Prior art keywords
same
system embodying
terminal telephone
telephone substation
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
CA598747A
Inventor
V. Keeley Kedric
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.)
CKT
Original Assignee
CKT
Publication date
Application granted granted Critical
Publication of CA598747A publication Critical patent/CA598747A/en
Expired legal-status Critical Current

Links

CA598747A Three terminal telephone substation and system embodying the same Expired CA598747A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA598747T

Publications (1)

Publication Number Publication Date
CA598747A true CA598747A (en) 1960-05-24

Family

ID=35814523

Family Applications (1)

Application Number Title Priority Date Filing Date
CA598747A Expired CA598747A (en) Three terminal telephone substation and system embodying the same

Country Status (1)

Country Link
CA (1) CA598747A (en)

Similar Documents

Publication Publication Date Title
CA598747A (en) Three terminal telephone substation and system embodying the same
CA603443A (en) Combined toll and free-service telephone trunking system
CA594844A (en) Telephone conference system
CA602932A (en) Telephone conference system
AU242640B2 (en) Improvements in telephone systems
AU265835B2 (en) Improvements in telephone systems
CA593055A (en) Telephone system
CA602623A (en) Telephone system
CA609058A (en) Call-distributing telephone system
CA610884A (en) Telephone system
CA596906A (en) Telephone systems
CA606598A (en) Telephone systems
CA590349A (en) Telephone systems
CA599314A (en) Telephone systems
CA600785A (en) Telephone systems
CA602850A (en) Telephone systems
CA602931A (en) Telephone systems
CA594337A (en) Telephone systems
CA604514A (en) Electrical circuit-breaker and the like
CA597792A (en) Keysenders of the kind used in telephone systems
CA599226A (en) Telephone switchboards
AU6288560A (en) Improvements in telephone systems
AU1077661A (en) Improvements in telephone systems
CA605105A (en) Anti-sidetone and line balancing telephone circuit
CA605782A (en) Loud-speaking telephone systems