CA238898A - Machine switching telephone exchange system - Google Patents

Machine switching telephone exchange system

Info

Publication number
CA238898A
CA238898A CA238898A CA238898DA CA238898A CA 238898 A CA238898 A CA 238898A CA 238898 A CA238898 A CA 238898A CA 238898D A CA238898D A CA 238898DA CA 238898 A CA238898 A CA 238898A
Authority
CA
Canada
Prior art keywords
exchange system
telephone exchange
machine switching
switching telephone
machine
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
CA238898A
Other languages
French (fr)
Inventor
L. Stokely Ray
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.)
INTERNATIONAL WESTERN ELECTRIC Co
Original Assignee
INTERNATIONAL WESTERN ELECTRIC Co
Publication date
Application granted granted Critical
Publication of CA238898A publication Critical patent/CA238898A/en
Expired legal-status Critical Current

Links

CA238898A Machine switching telephone exchange system Expired CA238898A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA238898T

Publications (1)

Publication Number Publication Date
CA238898A true CA238898A (en) 1924-03-25

Family

ID=35142929

Family Applications (1)

Application Number Title Priority Date Filing Date
CA238898A Expired CA238898A (en) Machine switching telephone exchange system

Country Status (1)

Country Link
CA (1) CA238898A (en)

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