FR1026253A - Fixed projection device - Google Patents

Fixed projection device

Info

Publication number
FR1026253A
FR1026253A FR1026253DA FR1026253A FR 1026253 A FR1026253 A FR 1026253A FR 1026253D A FR1026253D A FR 1026253DA FR 1026253 A FR1026253 A FR 1026253A
Authority
FR
France
Prior art keywords
projection device
fixed projection
fixed
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
Maurice-Alphonse Monferrand
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 FR1026253A publication Critical patent/FR1026253A/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
    • G03B21/30—Details adapted to collapse or fold, e.g. for portability

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR1026253D 1950-10-19 1950-10-19 Fixed projection device Expired FR1026253A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1026253T 1950-10-19

Publications (1)

Publication Number Publication Date
FR1026253A true FR1026253A (en) 1953-04-27

Family

ID=9579973

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1026253D Expired FR1026253A (en) 1950-10-19 1950-10-19 Fixed projection device

Country Status (1)

Country Link
FR (1) FR1026253A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6253951B1 (en) * 1998-04-07 2001-07-03 Robert M. Pruckler Apparatus and system for covering and protecting the rim of a paint can

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6253951B1 (en) * 1998-04-07 2001-07-03 Robert M. Pruckler Apparatus and system for covering and protecting the rim of a paint can

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