CA543973A - Automatic telephone system - Google Patents

Automatic telephone system

Info

Publication number
CA543973A
CA543973A CA543973DA CA543973A CA 543973 A CA543973 A CA 543973A CA 543973D A CA543973D A CA 543973DA CA 543973 A CA543973 A CA 543973A
Authority
CA
Canada
Prior art keywords
telephone system
automatic telephone
automatic
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
Other languages
French (fr)
Inventor
P. Boswau Hans
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.)
LEICH ELECTRIC Co
Original Assignee
LEICH ELECTRIC Co
Publication date
Application granted granted Critical
Publication of CA543973A publication Critical patent/CA543973A/en
Expired legal-status Critical Current

Links

CA543973D Automatic telephone system Expired CA543973A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA543973T

Publications (1)

Publication Number Publication Date
CA543973A true CA543973A (en) 1957-07-23

Family

ID=35701144

Family Applications (1)

Application Number Title Priority Date Filing Date
CA543973D Expired CA543973A (en) Automatic telephone system

Country Status (1)

Country Link
CA (1) CA543973A (en)

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