FR655429A - Electrical warning device - Google Patents

Electrical warning device

Info

Publication number: FR655429A
Authority: FR; France
Prior art keywords: warning device; electrical warning; electrical; warning
Prior art date: 1928-06-06
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

Paul-Hubert Trannoy

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.)

1928-06-06

Filing date

1928-06-06

Publication date

1929-04-18

1928-06-06 Application filed filed Critical

1929-04-18 Application granted granted Critical

1929-04-18 Publication of FR655429A publication Critical patent/FR655429A/en

Status Expired legal-status Critical Current

Classifications

- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation

Landscapes

Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)

FR655429D 1928-06-06 1928-06-06 Electrical warning device Expired FR655429A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR655429T		1928-06-06

Publications (1)

Publication Number	Publication Date
FR655429A true FR655429A (en)	1929-04-18

Family

ID=9007124

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR655429D Expired FR655429A (en)	1928-06-06	1928-06-06	Electrical warning device

Country Status (1)

Country	Link
FR (1)	FR655429A (en)

1928
- 1928-06-06 FR FR655429D patent/FR655429A/en not_active Expired

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