FR723192A - Automatic telephone call device - Google Patents

Automatic telephone call device

Info

Publication number: FR723192A
Authority: FR; France
Prior art keywords: telephone call; call device; automatic telephone; automatic; telephone
Prior art date: 1931-09-21
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

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.)

DETECTIF

Original Assignee

DETECTIF

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.)

1931-09-21

Filing date

1931-09-21

Publication date

1932-04-04

1931-09-21 Application filed by DETECTIF filed Critical DETECTIF

1932-04-04 Application granted granted Critical

1932-04-04 Publication of FR723192A publication Critical patent/FR723192A/en

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)

FR723192D 1931-09-21 1931-09-21 Automatic telephone call device Expired FR723192A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR723192T		1931-09-21

Publications (1)

Publication Number	Publication Date
FR723192A true FR723192A (en)	1932-04-04

Family

ID=9104031

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR723192D Expired FR723192A (en)	1931-09-21	1931-09-21	Automatic telephone call device

Country Status (1)

Country	Link
FR (1)	FR723192A (en)

1931
- 1931-09-21 FR FR723192D patent/FR723192A/en not_active Expired

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