FR449575A - Improvements in the spotlight - Google Patents

Improvements in the spotlight

Info

Publication number
FR449575A
FR449575A FR449575DA FR449575A FR 449575 A FR449575 A FR 449575A FR 449575D A FR449575D A FR 449575DA FR 449575 A FR449575 A FR 449575A
Authority
FR
France
Prior art keywords
spotlight
Prior art date
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
French (fr)
Inventor
Emile Weiner
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.)
EMILE WEINER
Original Assignee
EMILE WEINER
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.)
Filing date
Publication date
Application filed by EMILE WEINER filed Critical EMILE WEINER
Application granted granted Critical
Publication of FR449575A publication Critical patent/FR449575A/en
Expired legal-status Critical Current

Links

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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR449575D 1912-08-15 1912-10-18 Improvements in the spotlight Expired FR449575A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HU449575X 1912-08-15

Publications (1)

Publication Number Publication Date
FR449575A true FR449575A (en) 1913-03-03

Family

ID=1490087

Family Applications (1)

Application Number Title Priority Date Filing Date
FR449575D Expired FR449575A (en) 1912-08-15 1912-10-18 Improvements in the spotlight

Country Status (1)

Country Link
FR (1) FR449575A (en)

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