CA308748A - Chercheur d'appels de systeme de telephone automatique - Google Patents

Chercheur d'appels de systeme de telephone automatique

Info

Publication number
CA308748A
CA308748A CA308748DA CA308748A CA 308748 A CA308748 A CA 308748A CA 308748D A CA308748D A CA 308748DA CA 308748 A CA308748 A CA 308748A
Authority
CA
Canada
Prior art keywords
telephone systems
automatic telephone
call finder
finder
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
Other languages
English (en)
Inventor
Edgar Humphries Horace
Griffith Dixon Reginald
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.)
Siemens Brothers and Co Ltd
Original Assignee
Siemens Brothers and Co Ltd
Publication date
Application granted granted Critical
Publication of CA308748A publication Critical patent/CA308748A/fr
Expired legal-status Critical Current

Links

CA308748D Chercheur d'appels de systeme de telephone automatique Expired CA308748A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA308748T

Publications (1)

Publication Number Publication Date
CA308748A true CA308748A (fr) 1931-02-17

Family

ID=35268071

Family Applications (1)

Application Number Title Priority Date Filing Date
CA308748D Expired CA308748A (fr) Chercheur d'appels de systeme de telephone automatique

Country Status (1)

Country Link
CA (1) CA308748A (fr)

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