FR835414A - Flashlight improvements - Google Patents

Flashlight improvements

Info

Publication number: FR835414A
Authority: FR; France
Prior art keywords: flashlight; flashlight improvements
Prior art date: 1937-03-18
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.)

Compagnie des Lampes

Original Assignee

Compagnie des Lampes

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.)

1937-03-18

Filing date

1938-03-18

Publication date

1938-12-21

1938-03-18 Application filed by Compagnie des Lampes filed Critical Compagnie des Lampes

1938-12-21 Application granted granted Critical

1938-12-21 Publication of FR835414A publication Critical patent/FR835414A/en

Status Expired legal-status Critical Current

Classifications

- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K5/00—Light sources using charges of combustible material, e.g. illuminating flash devices
- F21K5/02—Light sources using charges of combustible material, e.g. illuminating flash devices ignited in a non-disrupting container, e.g. photo-flash bulb

Landscapes

Engineering & Computer Science (AREA)
General Engineering & Computer Science (AREA)

FR835414D 1937-03-18 1938-03-18 Flashlight improvements Expired FR835414A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US835414XA	1937-03-18	1937-03-18

Publications (1)

Publication Number	Publication Date
FR835414A true FR835414A (en)	1938-12-21

Family

ID=22178993

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR835414D Expired FR835414A (en)	1937-03-18	1938-03-18	Flashlight improvements

Country Status (1)

Country	Link
FR (1)	FR835414A (en)

1938
- 1938-03-18 FR FR835414D patent/FR835414A/en not_active Expired

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