CA498036A - Systemes telephoniques - Google Patents

Systemes telephoniques

Info

Publication number
CA498036A
CA498036A CA498036A CA498036DA CA498036A CA 498036 A CA498036 A CA 498036A CA 498036 A CA498036 A CA 498036A CA 498036D A CA498036D A CA 498036DA CA 498036 A CA498036 A CA 498036A
Authority
CA
Canada
Prior art keywords
telephone systems
telephone
systems
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
CA498036A
Other languages
English (en)
Inventor
E. Ostline John
Original Assignee
Automatic Electric Laboratories Inc
Publication date
Application granted granted Critical
Publication of CA498036A publication Critical patent/CA498036A/fr
Expired legal-status Critical Current

Links

CA498036A Systemes telephoniques Expired CA498036A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA498036T

Publications (1)

Publication Number Publication Date
CA498036A true CA498036A (fr) 1953-12-01

Family

ID=35643472

Family Applications (1)

Application Number Title Priority Date Filing Date
CA498036A Expired CA498036A (fr) Systemes telephoniques

Country Status (1)

Country Link
CA (1) CA498036A (fr)

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