FI916012A0 - OVERHEADPROJEKTOR. - Google Patents

OVERHEADPROJEKTOR.

Info

Publication number
FI916012A0
FI916012A0 FI916012A FI916012A FI916012A0 FI 916012 A0 FI916012 A0 FI 916012A0 FI 916012 A FI916012 A FI 916012A FI 916012 A FI916012 A FI 916012A FI 916012 A0 FI916012 A0 FI 916012A0
Authority
FI
Finland
Prior art keywords
overheadprojektor
Prior art date
Application number
FI916012A
Other languages
Finnish (fi)
Other versions
FI916012A (en
Inventor
Willi Strohmeyer
Original Assignee
Geha Werke Gmbh
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 Geha Werke Gmbh filed Critical Geha Werke Gmbh
Publication of FI916012A0 publication Critical patent/FI916012A0/en
Publication of FI916012A publication Critical patent/FI916012A/en

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)
  • Projection Apparatus (AREA)
FI916012A 1990-12-24 1991-12-19 OVERHEADPROJEKTOR. FI916012A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19904041778 DE4041778A1 (en) 1990-12-24 1990-12-24 WORK PROJECTOR

Publications (2)

Publication Number Publication Date
FI916012A0 true FI916012A0 (en) 1991-12-19
FI916012A FI916012A (en) 1992-06-25

Family

ID=6421440

Family Applications (1)

Application Number Title Priority Date Filing Date
FI916012A FI916012A (en) 1990-12-24 1991-12-19 OVERHEADPROJEKTOR.

Country Status (6)

Country Link
EP (1) EP0492213B1 (en)
DE (2) DE4041778A1 (en)
DK (1) DK0492213T3 (en)
ES (1) ES2075314T3 (en)
FI (1) FI916012A (en)
GR (1) GR3017520T3 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9209310U1 (en) * 1992-07-09 1992-11-19 AV-Kommunikation Anders + Kern GmbH & Co KG, 2000 Norderstedt Translucent projector
DE10007830A1 (en) * 2000-02-21 2001-08-23 Franz Josef Donner Overhead projector
GB2376085B (en) * 2001-05-03 2005-02-09 Lance Rayner Visual aid

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3711194A (en) * 1965-10-24 1973-01-16 H Wilson Overhead projection apparatus
DE3205643A1 (en) * 1982-02-17 1983-08-25 Demolux Gmbh & Co Kg, 6070 Langen Overhead projector
DE3519506A1 (en) * 1985-05-31 1986-12-04 Demolux Gmbh & Co Kg, 6070 Langen Overhead projector
DE3542045A1 (en) * 1985-11-28 1987-06-04 Neuland Gmbh Kommunikation DEMONSTRATION BOARD

Also Published As

Publication number Publication date
FI916012A (en) 1992-06-25
DE4041778A1 (en) 1992-07-02
EP0492213A2 (en) 1992-07-01
ES2075314T3 (en) 1995-10-01
DE4041778C2 (en) 1992-11-19
GR3017520T3 (en) 1995-12-31
DE59105931D1 (en) 1995-08-10
EP0492213B1 (en) 1995-07-05
EP0492213A3 (en) 1993-03-17
DK0492213T3 (en) 1995-11-20

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Legal Events

Date Code Title Description
FD Application lapsed