FR2234827A5 - - Google Patents

Info

Publication number
FR2234827A5
FR2234827A5 FR7344733A FR7344733A FR2234827A5 FR 2234827 A5 FR2234827 A5 FR 2234827A5 FR 7344733 A FR7344733 A FR 7344733A FR 7344733 A FR7344733 A FR 7344733A FR 2234827 A5 FR2234827 A5 FR 2234827A5
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
FR7344733A
Other languages
French (fr)
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 FR2234827A5 publication Critical patent/FR2234827A5/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)
  • Overhead Projectors And Projection Screens (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
FR7344733A 1973-06-23 1973-12-14 Expired FR2234827A5 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2332662A DE2332662A1 (de) 1973-06-23 1973-06-23 Tageslicht-projektionsgeraet

Publications (1)

Publication Number Publication Date
FR2234827A5 true FR2234827A5 (enrdf_load_stackoverflow) 1975-01-17

Family

ID=5885227

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7344733A Expired FR2234827A5 (enrdf_load_stackoverflow) 1973-06-23 1973-12-14

Country Status (7)

Country Link
BE (1) BE814263A (enrdf_load_stackoverflow)
CH (1) CH561434A5 (enrdf_load_stackoverflow)
DE (1) DE2332662A1 (enrdf_load_stackoverflow)
DK (1) DK333574A (enrdf_load_stackoverflow)
FR (1) FR2234827A5 (enrdf_load_stackoverflow)
GB (1) GB1424298A (enrdf_load_stackoverflow)
NO (1) NO741870L (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9311880U1 (de) * 1993-08-04 1993-10-14 AV-Kommunikation Anders + Kern GmbH & Co KG, 22851 Norderstedt Overhead-Projektor mit einem Variofocalobjektiv
DE19538795C2 (de) * 1995-10-18 1997-11-27 Peter Ochsenmeier Durchlicht-Overheadprojektor

Also Published As

Publication number Publication date
NO741870L (enrdf_load_stackoverflow) 1975-01-20
GB1424298A (en) 1976-02-11
DK333574A (enrdf_load_stackoverflow) 1975-02-10
DE2332662A1 (de) 1975-03-20
BE814263A (fr) 1974-08-16
CH561434A5 (enrdf_load_stackoverflow) 1975-04-30

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Legal Events

Date Code Title Description
ST Notification of lapse