FR612219A - équipement de lampes électriques portatives - Google Patents

équipement de lampes électriques portatives

Info

Publication number
FR612219A
FR612219A FR612219DA FR612219A FR 612219 A FR612219 A FR 612219A FR 612219D A FR612219D A FR 612219DA FR 612219 A FR612219 A FR 612219A
Authority
FR
France
Prior art keywords
portable electric
electric light
light equipment
equipment
portable
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
English (en)
Inventor
Hugo Wiesmeyer
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 filed Critical
Application granted granted Critical
Publication of FR612219A publication Critical patent/FR612219A/fr
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
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L2/00—Systems of electric lighting devices
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR612219D 1926-03-05 1926-03-05 équipement de lampes électriques portatives Expired FR612219A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR612219T 1926-03-05

Publications (1)

Publication Number Publication Date
FR612219A true FR612219A (fr) 1926-10-19

Family

ID=8978682

Family Applications (1)

Application Number Title Priority Date Filing Date
FR612219D Expired FR612219A (fr) 1926-03-05 1926-03-05 équipement de lampes électriques portatives

Country Status (1)

Country Link
FR (1) FR612219A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4607924A (en) * 1984-12-04 1986-08-26 Vivid Systems Incorporated Video projector focus adjustment mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4607924A (en) * 1984-12-04 1986-08-26 Vivid Systems Incorporated Video projector focus adjustment mechanism

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