CA451181A - Systeme de telephone automatique - Google Patents

Systeme de telephone automatique

Info

Publication number: CA451181A
Authority: CA; Canada
Prior art keywords: telephone system; automatic telephone; automatic; telephone
Prior art date: 1948-09-14
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

CA451181A

Other languages

Inventor

D. Willis Bernard

Original Assignee

Automatic Electric Laboratories Inc

Associated Telephone and Telegraph Co

Publication date

1948-09-14

1948-09-14 Application granted granted Critical

1948-09-14 Publication of CA451181A publication Critical patent/CA451181A/fr

Status Expired legal-status Critical Current

CA451181A Systeme de telephone automatique Expired CA451181A (fr)

Application Number	Priority Date	Filing Date	Title
CA451181T

Publication Number	Publication Date
CA451181A true CA451181A (fr)	1948-09-14

Application Number	Title	Priority Date	Filing Date
CA451181A Expired CA451181A (fr)			Systeme de telephone automatique

Country	Link
CA (1)	CA451181A (fr)

Publication	Publication Date	Title
CA448462A (fr)	1948-05-11	Systeme automatique de telephone
CA450488A (fr)	1948-08-10	Systeme a suivre automatiquement
CA448254A (fr)	1948-05-04	Systeme telephonique
CA450956A (fr)	1948-08-31	Systeme telephonique
CA453306A (fr)	1948-12-14	Systeme telephonique
CA452411A (fr)	1948-11-02	Systeme telephonique
CA450525A (fr)	1948-08-17	Systeme telephonique
CA452704A (fr)	1948-11-16	Systeme telephonique
CA448787A (fr)	1948-05-25	Systeme telephonique
CA448982A (fr)	1948-06-08	Systeme telephonique
CA449626A (fr)	1948-07-06	Systeme telephonique
CA452491A (fr)	1948-11-09	Systeme telephonique
CA448847A (fr)	1948-06-01	Systeme telephonique
CA450847A (fr)	1948-08-31	Systeme telephonique
CA448255A (fr)	1948-05-04	Systeme telephonique
CA453398A (fr)	1948-12-21	Systeme telephonique
CA446504A (fr)	1948-02-03	Systeme telephonique
CA452488A (fr)	1948-11-09	Systeme telephonique
CA447222A (fr)	1948-03-16	Systeme telephonique
CA451267A (fr)	1948-09-14	Systeme telephonique
CA453058A (fr)	1948-11-30	Systeme telephonique
CA447586A (fr)	1948-03-30	Systeme telephonique
CA446971A (fr)	1948-03-02	Systeme de telephonie
CA447221A (fr)	1948-03-16	Systeme telephonique
CA450480A (fr)	1948-08-10	Systeme telephonique