CA497640A - Systemes de telephones automatiques - Google Patents

Systemes de telephones automatiques

Info

Publication number: CA497640A
Authority: CA; Canada
Prior art keywords: telephone systems; automatic telephone; automatic; systems; telephone
Prior art date: 1953-11-10
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

CA497640A

Other languages

English (en)

Inventor

A. Christian David

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

1953-11-10

1953-11-10 Application granted granted Critical

1953-11-10 Publication of CA497640A publication Critical patent/CA497640A/fr

Status Expired legal-status Critical Current

Links

CA497640A Systemes de telephones automatiques Expired CA497640A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA497640T

Publications (1)

Publication Number	Publication Date
CA497640A true CA497640A (fr)	1953-11-10

Family

ID=35643071

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA497640A Expired CA497640A (fr)			Systemes de telephones automatiques

Country Status (1)

Country	Link
CA (1)	CA497640A (fr)

0
- CA CA497640A patent/CA497640A/fr not_active Expired

Similar Documents

Publication	Publication Date	Title
CA497640A (fr)	1953-11-10	Systemes de telephones automatiques
CA490689A (fr)	1953-02-17	Systemes automatiques de telephone
CA493919A (fr)	1953-06-23	Systemes automatiques de telephone
CA494877A (fr)	1953-07-28	Systemes de telephone automatique
CA496610A (fr)	1953-10-06	Systemes de telephone automatique
CA495231A (fr)	1953-08-11	Systeme de telephone automatique
CA491104A (fr)	1953-03-10	Systemes telephoniques
CA493123A (fr)	1953-05-26	Systemes telephoniques
CA493483A (fr)	1953-06-09	Systemes telephoniques
CA493485A (fr)	1953-06-09	Systemes telephoniques
CA493486A (fr)	1953-06-09	Systemes telephoniques
CA493889A (fr)	1953-06-23	Systemes telephoniques
CA494014A (fr)	1953-06-30	Systemes telephoniques
CA495874A (fr)	1953-09-08	Systemes telephoniques
CA496513A (fr)	1953-09-29	Systemes telephoniques
CA496514A (fr)	1953-09-29	Systemes telephoniques
CA496858A (fr)	1953-10-13	Systemes telephoniques
CA497078A (fr)	1953-10-20	Systemes telephoniques
CA497326A (fr)	1953-11-03	Systemes telephoniques
CA497641A (fr)	1953-11-10	Systemes telephoniques
CA497642A (fr)	1953-11-10	Systemes telephoniques
CA498036A (fr)	1953-12-01	Systemes telephoniques
CA498037A (fr)	1953-12-01	Systemes telephoniques
CA498762A (fr)	1953-12-29	Systemes telephoniques
CA498859A (fr)	1953-12-29	Systemes telephoniques