FR9172E - Lanterne de projection - Google Patents

Lanterne de projection

Info

Publication number
FR9172E
FR9172E FR9172DA FR9172E FR 9172 E FR9172 E FR 9172E FR 9172D A FR9172D A FR 9172DA FR 9172 E FR9172 E FR 9172E
Authority
FR
France
Prior art keywords
projection lantern
lantern
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
English (en)
Inventor
Paul Degrond
Gabriel Le Fortier
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.)
GABRIEL LE FORTIER
PAUL DEGROND
Original Assignee
GABRIEL LE FORTIER
PAUL DEGROND
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 GABRIEL LE FORTIER, PAUL DEGROND filed Critical GABRIEL LE FORTIER
Application granted granted Critical
Publication of FR9172E publication Critical patent/FR9172E/fr
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
    • G03B21/08—Projectors or projection-type viewers; Accessories therefor affording epidiascopic projection

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR9172D 1907-09-19 1907-11-07 Lanterne de projection Expired FR9172E (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR384723T 1907-09-19
FR9172T 1907-11-07

Publications (1)

Publication Number Publication Date
FR9172E true FR9172E (fr) 1908-09-07

Family

ID=1351765

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9172D Expired FR9172E (fr) 1907-09-19 1907-11-07 Lanterne de projection

Country Status (1)

Country Link
FR (1) FR9172E (fr)

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