FR523514A - Improvements in permanently fixed lamps - Google Patents

Improvements in permanently fixed lamps

Info

Publication number: FR523514A
Authority: FR; France
Prior art keywords: permanently fixed; fixed lamps; lamps; permanently; fixed
Prior art date: 1915-12-06
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

FR523514A

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.)

PERFECLITE Manufacturing Co

Original Assignee

PERFECLITE Manufacturing Co

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.)

1915-12-06

Filing date

1920-07-10

Publication date

1921-08-19

1920-07-10 Application filed by PERFECLITE Manufacturing Co filed Critical PERFECLITE Manufacturing Co

1921-08-19 Application granted granted Critical

1921-08-19 Publication of FR523514A publication Critical patent/FR523514A/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
- F21V7/00—Reflectors for light sources
- F21V7/04—Optical design
- F21V7/05—Optical design plane

Landscapes

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

FR523514A 1915-12-06 1920-07-10 Improvements in permanently fixed lamps Expired FR523514A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US523514XA	1915-12-06	1915-12-06

Publications (1)

Publication Number	Publication Date
FR523514A true FR523514A (en)	1921-08-19

Family

ID=21977047

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR523514A Expired FR523514A (en)	1915-12-06	1920-07-10	Improvements in permanently fixed lamps

Country Status (1)

Country	Link
FR (1)	FR523514A (en)

1920
- 1920-07-10 FR FR523514A patent/FR523514A/en not_active Expired

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