FR2235628A5 - - Google Patents

Info

Publication number
FR2235628A5
FR2235628A5 FR7345012A FR7345012A FR2235628A5 FR 2235628 A5 FR2235628 A5 FR 2235628A5 FR 7345012 A FR7345012 A FR 7345012A FR 7345012 A FR7345012 A FR 7345012A FR 2235628 A5 FR2235628 A5 FR 2235628A5
Authority
FR
France
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
FR7345012A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR2235628A5 publication Critical patent/FR2235628A5/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
    • G03B21/132—Overhead projectors, i.e. capable of projecting hand-writing or drawing during action

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)
  • Overhead Projectors And Projection Screens (AREA)
FR7345012A 1973-06-27 1973-12-17 Expired FR2235628A5 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732333770 DE2333770A1 (de) 1973-06-27 1973-06-27 Tageslichtprojektor

Publications (1)

Publication Number Publication Date
FR2235628A5 true FR2235628A5 (fr) 1975-01-24

Family

ID=5885804

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7345012A Expired FR2235628A5 (fr) 1973-06-27 1973-12-17

Country Status (6)

Country Link
BE (1) BE814852A (fr)
CH (1) CH566568A5 (fr)
DE (1) DE2333770A1 (fr)
DK (1) DK337674A (fr)
FR (1) FR2235628A5 (fr)
GB (1) GB1429283A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3410002A1 (de) * 1984-03-19 1985-09-19 Demolux Gmbh & Co Kg, 6070 Langen Overhead-projektor
US6497489B1 (en) * 2001-08-29 2002-12-24 Benq Corporation Projector with guiding rib in vent

Also Published As

Publication number Publication date
GB1429283A (en) 1976-03-24
DK337674A (fr) 1975-02-10
BE814852A (fr) 1974-11-18
CH566568A5 (fr) 1975-09-15
DE2333770A1 (de) 1975-01-23

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Legal Events

Date Code Title Description
ST Notification of lapse