CA159997A - Mecanisme d'appels telephoniques - Google Patents

Mecanisme d'appels telephoniques

Info

Publication number
CA159997A
CA159997A CA000159997A CA159997DA CA159997A CA 159997 A CA159997 A CA 159997A CA 000159997 A CA000159997 A CA 000159997A CA 159997D A CA159997D A CA 159997DA CA 159997 A CA159997 A CA 159997A
Authority
CA
Canada
Prior art keywords
telephone call
call mechanism
telephone
call
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
CA000159997A
Other languages
English (en)
Inventor
Frank Robert Mcberty
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.)
ELECTRICAL PROPERTIES Ltd
AT&T Corp
Original Assignee
ELECTRICAL PROPERTIES Ltd
Western Electric Co Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ELECTRICAL PROPERTIES Ltd, Western Electric Co Inc filed Critical ELECTRICAL PROPERTIES Ltd
Application granted granted Critical
Publication of CA159997A publication Critical patent/CA159997A/fr
Expired legal-status Critical Current

Links

CA000159997A 1913-02-21 1913-02-21 Mecanisme d'appels telephoniques Expired CA159997A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA159997T 1913-02-21

Publications (1)

Publication Number Publication Date
CA159997A true CA159997A (fr) 1915-01-12

Family

ID=45279701

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000159997A Expired CA159997A (fr) 1913-02-21 1913-02-21 Mecanisme d'appels telephoniques

Country Status (1)

Country Link
CA (1) CA159997A (fr)

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