FR25810E - Lanterne de projection pour corps opaques - Google Patents

Lanterne de projection pour corps opaques

Info

Publication number: FR25810E
Authority: FR; France
Prior art keywords: opaque bodies; projection lantern; lantern; projection; opaque
Prior art date: 1921-10-18
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

Inventor

Charles-Francois Dussaud

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.)

1921-10-18

Filing date

1921-10-18

Publication date

1923-05-28

1921-10-18 Application filed filed Critical

1923-05-28 Application granted granted Critical

1923-05-28 Publication of FR25810E publication Critical patent/FR25810E/fr

Status Expired legal-status Critical Current

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
- G03B21/06—Projectors or projection-type viewers; Accessories therefor affording only episcopic projection

Landscapes

Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)

FR25810D 1921-10-18 1921-10-18 Lanterne de projection pour corps opaques Expired FR25810E (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR25810T		1921-10-18

Publications (1)

Publication Number	Publication Date
FR25810E true FR25810E (fr)	1923-05-28

Family

ID=8664293

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR25810D Expired FR25810E (fr)	1921-10-18	1921-10-18	Lanterne de projection pour corps opaques

Country Status (1)

Country	Link
FR (1)	FR25810E (fr)

1921
- 1921-10-18 FR FR25810D patent/FR25810E/fr not_active Expired

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