DE7013655U - Schreibprojektor. - Google Patents

Schreibprojektor.

Info

Publication number
DE7013655U
DE7013655U DE19707013655 DE7013655U DE7013655U DE 7013655 U DE7013655 U DE 7013655U DE 19707013655 DE19707013655 DE 19707013655 DE 7013655 U DE7013655 U DE 7013655U DE 7013655 U DE7013655 U DE 7013655U
Authority
DE
Germany
Prior art keywords
slide
housing
projector
writing
projection head
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
DE19707013655
Other languages
German (de)
English (en)
Inventor
Ritzerfeld Gerhard
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
Priority to DE19707013655 priority Critical patent/DE7013655U/de
Publication of DE7013655U publication Critical patent/DE7013655U/de
Priority to CH246871A priority patent/CH514151A/de
Priority to FR7110110A priority patent/FR2083230A5/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)
DE19707013655 1970-04-09 1970-04-09 Schreibprojektor. Expired DE7013655U (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19707013655 DE7013655U (de) 1970-04-09 1970-04-09 Schreibprojektor.
CH246871A CH514151A (de) 1970-04-09 1971-02-19 Schreibprojektor
FR7110110A FR2083230A5 (enExample) 1970-04-09 1971-03-23

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19707013655 DE7013655U (de) 1970-04-09 1970-04-09 Schreibprojektor.

Publications (1)

Publication Number Publication Date
DE7013655U true DE7013655U (de) 1970-08-27

Family

ID=6610883

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19707013655 Expired DE7013655U (de) 1970-04-09 1970-04-09 Schreibprojektor.

Country Status (3)

Country Link
CH (1) CH514151A (enExample)
DE (1) DE7013655U (enExample)
FR (1) FR2083230A5 (enExample)

Also Published As

Publication number Publication date
CH514151A (de) 1971-10-15
FR2083230A5 (enExample) 1971-12-10

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