CH541819A - Auflagetisch für einen Schreibprojektor - Google Patents

Auflagetisch für einen Schreibprojektor

Info

Publication number
CH541819A
CH541819A CH1278872A CH1278872A CH541819A CH 541819 A CH541819 A CH 541819A CH 1278872 A CH1278872 A CH 1278872A CH 1278872 A CH1278872 A CH 1278872A CH 541819 A CH541819 A CH 541819A
Authority
CH
Switzerland
Prior art keywords
support table
writing projector
projector
writing
support
Prior art date
Application number
CH1278872A
Other languages
German (de)
English (en)
Inventor
Ritzerfeld Gerhard
Original Assignee
Ritzerfeld Gerhard
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 Ritzerfeld Gerhard filed Critical Ritzerfeld Gerhard
Publication of CH541819A publication Critical patent/CH541819A/de

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)
  • Drawing Aids And Blackboards (AREA)
CH1278872A 1971-10-22 1972-08-30 Auflagetisch für einen Schreibprojektor CH541819A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19717140691 DE7140691U (de) 1971-10-22 1971-10-22 Arbeitsplatte bzw. schreibplatte fuer einen schreibprojektor

Publications (1)

Publication Number Publication Date
CH541819A true CH541819A (de) 1973-09-15

Family

ID=6624769

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1278872A CH541819A (de) 1971-10-22 1972-08-30 Auflagetisch für einen Schreibprojektor

Country Status (7)

Country Link
BE (1) BE788185A (enExample)
CH (1) CH541819A (enExample)
DE (1) DE7140691U (enExample)
FR (1) FR2157559A5 (enExample)
GB (1) GB1363026A (enExample)
NL (1) NL7212063A (enExample)
SE (1) SE374437B (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5879731U (ja) * 1981-11-26 1983-05-30 ソニー株式会社 リアプロジエクタ装置

Also Published As

Publication number Publication date
BE788185A (fr) 1972-12-18
NL7212063A (enExample) 1973-04-25
DE7140691U (de) 1972-01-27
FR2157559A5 (enExample) 1973-06-01
SE374437B (enExample) 1975-03-03
GB1363026A (en) 1974-08-14

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Legal Events

Date Code Title Description
PL Patent ceased