[go: up one dir, main page]

FR834246A - Improvements to projector supports - Google Patents

Improvements to projector supports

Info

Publication number
FR834246A
FR834246A FR834246DA FR834246A FR 834246 A FR834246 A FR 834246A FR 834246D A FR834246D A FR 834246DA FR 834246 A FR834246 A FR 834246A
Authority
FR
France
Prior art keywords
projector supports
projector
supports
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
Andre Cremer
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 FR834246A publication Critical patent/FR834246A/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
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor
    • G03B15/02—Illuminating scene
    • G03B15/06—Special arrangements of screening, diffusing, or reflecting devices, e.g. in studio
    • G03B15/07—Arrangements of lamps in studios

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR834246D 1938-02-25 1938-02-25 Improvements to projector supports Expired FR834246A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR834246T 1938-02-25

Publications (1)

Publication Number Publication Date
FR834246A true FR834246A (en) 1938-11-16

Family

ID=9297001

Family Applications (1)

Application Number Title Priority Date Filing Date
FR834246D Expired FR834246A (en) 1938-02-25 1938-02-25 Improvements to projector supports

Country Status (1)

Country Link
FR (1) FR834246A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2668906A (en) * 1951-06-27 1954-02-09 Miller Philip Lamp shade stud support
US4742980A (en) * 1985-07-08 1988-05-10 Helmuth Heigl Positioning device for test heads

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2668906A (en) * 1951-06-27 1954-02-09 Miller Philip Lamp shade stud support
US4742980A (en) * 1985-07-08 1988-05-10 Helmuth Heigl Positioning device for test heads

Similar Documents

Publication Publication Date Title
FR858007A (en) Improvements to nuts
FR855155A (en) Improvements to gyroscopes
FR834246A (en) Improvements to projector supports
FR857981A (en) Improvements to thermostats
FR858616A (en) Improvements to amplifiers
FR855048A (en) Improvements to ultrasonic projectors
FR838619A (en) Improvements to clamps
FR861547A (en) Improvements to grid-screen lamps
FR835904A (en) Improvements relating to bicycles
FR888572A (en) Improvements to pillows
FR840932A (en) Powder-sulfur improvements
FR850091A (en) Vélocimanes improvements
FR844012A (en) Improvements to gasometers
FR860786A (en) Improvements to containers
FR850989A (en) Improvements to hydrometers
FR842625A (en) Improvements to espadrilles
FR848948A (en) Improvements to mower-harvesters
FR873101A (en) Improvements to radiogonioneters
FR852073A (en) Improvements to tubular lamp supports
FR841805A (en) Carburetor improvements
FR862360A (en) Improvements to amplifiers
FR853531A (en) Improvements to amplifiers
FR853990A (en) Improvements made to bearings
FR853688A (en) Improvements to mechanical couplings
FR841553A (en) Improvements to framing