FR670399A - Projector training - Google Patents

Projector training

Info

Publication number
FR670399A
FR670399A FR670399DA FR670399A FR 670399 A FR670399 A FR 670399A FR 670399D A FR670399D A FR 670399DA FR 670399 A FR670399 A FR 670399A
Authority
FR
France
Prior art keywords
projector
training
projector training
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)
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.)
Grimmeisen & Cie G
Original Assignee
Grimmeisen & Cie G
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 Grimmeisen & Cie G filed Critical Grimmeisen & Cie G
Application granted granted Critical
Publication of FR670399A publication Critical patent/FR670399A/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
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR670399D 1929-02-27 1929-02-27 Projector training Expired FR670399A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR670399T 1929-02-27

Publications (1)

Publication Number Publication Date
FR670399A true FR670399A (en) 1929-11-28

Family

ID=9016297

Family Applications (1)

Application Number Title Priority Date Filing Date
FR670399D Expired FR670399A (en) 1929-02-27 1929-02-27 Projector training

Country Status (1)

Country Link
FR (1) FR670399A (en)

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