FR405055A - Projection device for lighting devices - Google Patents

Projection device for lighting devices

Info

Publication number
FR405055A
FR405055A FR405055DA FR405055A FR 405055 A FR405055 A FR 405055A FR 405055D A FR405055D A FR 405055DA FR 405055 A FR405055 A FR 405055A
Authority
FR
France
Prior art keywords
projection device
lighting devices
lighting
devices
projection
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
August Sonderegger
Nathan Hirsch
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR405055A publication Critical patent/FR405055A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR405055D 1909-03-04 1909-07-13 Projection device for lighting devices Expired FR405055A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE405055X 1909-03-04

Publications (1)

Publication Number Publication Date
FR405055A true FR405055A (en) 1909-12-18

Family

ID=1449568

Family Applications (1)

Application Number Title Priority Date Filing Date
FR405055D Expired FR405055A (en) 1909-03-04 1909-07-13 Projection device for lighting devices

Country Status (1)

Country Link
FR (1) FR405055A (en)

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