CA219822A - Systeme telephonometrique - Google Patents

Systeme telephonometrique

Info

Publication number
CA219822A
CA219822A CA219822A CA219822DA CA219822A CA 219822 A CA219822 A CA 219822A CA 219822 A CA219822 A CA 219822A CA 219822D A CA219822D A CA 219822DA CA 219822 A CA219822 A CA 219822A
Authority
CA
Canada
Prior art keywords
telephone system
measured service
service telephone
measured
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
CA219822A
Other languages
English (en)
Inventor
M. Taggart Dawson
J. Scudder Frederick
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 CA219822A publication Critical patent/CA219822A/fr
Expired legal-status Critical Current

Links

CA219822A Systeme telephonometrique Expired CA219822A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA219822T

Publications (1)

Publication Number Publication Date
CA219822A true CA219822A (fr) 1922-06-20

Family

ID=35114266

Family Applications (1)

Application Number Title Priority Date Filing Date
CA219822A Expired CA219822A (fr) Systeme telephonometrique

Country Status (1)

Country Link
CA (1) CA219822A (fr)

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