FR478286A - Further development in incandescent electric lamps - Google Patents

Further development in incandescent electric lamps

Info

Publication number: FR478286A
Authority: FR; France
Prior art keywords: further development; electric lamps; incandescent electric; incandescent; lamps
Prior art date: 1914-07-27
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

FR478286A

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.)

CH ET G GRIMMEISEN SOC

Original Assignee

CH ET G GRIMMEISEN SOC

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.)

1914-07-27

Filing date

1914-07-27

Publication date

1915-12-01

1914-07-27 Application filed by CH ET G GRIMMEISEN SOC filed Critical CH ET G GRIMMEISEN SOC

1915-12-01 Application granted granted Critical

1915-12-01 Publication of FR478286A publication Critical patent/FR478286A/en

Status Expired legal-status Critical Current

Classifications

- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V3/00—Globes; Bowls; Cover glasses

Landscapes

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

FR478286A 1914-07-27 1914-07-27 Further development in incandescent electric lamps Expired FR478286A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR478286T		1914-07-27

Publications (1)

Publication Number	Publication Date
FR478286A true FR478286A (en)	1915-12-01

Family

ID=1515829

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR478286A Expired FR478286A (en)	1914-07-27	1914-07-27	Further development in incandescent electric lamps

Country Status (1)

Country	Link
FR (1)	FR478286A (en)

1914
- 1914-07-27 FR FR478286A patent/FR478286A/en not_active Expired

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