FR770370A - Appareil appelant mécaniquement au téléphone automatique - Google Patents

Appareil appelant mécaniquement au téléphone automatique

Info

Publication number: FR770370A
Authority: FR; France
Prior art keywords: mechanically; telephone device; automatic telephone; calling automatic; calling
Prior art date: 1934-01-10
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

Other languages

Inventor

Gaston Camille Ludmann

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.)

1934-01-10

Filing date

1934-01-10

Publication date

1934-09-13

1934-01-10 Application filed filed Critical

1934-09-13 Application granted granted Critical

1934-09-13 Publication of FR770370A publication Critical patent/FR770370A/fr

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/26—Devices for calling a subscriber
- H04M1/27—Devices whereby a plurality of signals may be stored simultaneously
- H04M1/274—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc

Landscapes

Engineering & Computer Science (AREA)
Signal Processing (AREA)

FR770370D 1934-01-10 1934-01-10 Appareil appelant mécaniquement au téléphone automatique Expired FR770370A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR770370T		1934-01-10

Publications (1)

Publication Number	Publication Date
FR770370A true FR770370A (fr)	1934-09-13

Family

ID=9186552

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR770370D Expired FR770370A (fr)	1934-01-10	1934-01-10	Appareil appelant mécaniquement au téléphone automatique

Country Status (1)

Country	Link
FR (1)	FR770370A (fr)

1934
- 1934-01-10 FR FR770370D patent/FR770370A/fr not_active Expired

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