CA1002799A - Audio-visual projection apparatus - Google Patents

Audio-visual projection apparatus

Info

Publication number
CA1002799A
CA1002799A CA212,913A CA212913A CA1002799A CA 1002799 A CA1002799 A CA 1002799A CA 212913 A CA212913 A CA 212913A CA 1002799 A CA1002799 A CA 1002799A
Authority
CA
Canada
Prior art keywords
audio
projection apparatus
visual projection
visual
projection
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
CA212,913A
Other versions
CA212913S (en
Inventor
Joze Mikolic
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 CA212,913A priority Critical patent/CA1002799A/en
Application granted granted Critical
Publication of CA1002799A publication Critical patent/CA1002799A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F27/00—Combined visual and audible advertising or displaying, e.g. for public address
    • 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
    • G03B21/001—Slide projectors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
CA212,913A 1974-11-04 1974-11-04 Audio-visual projection apparatus Expired CA1002799A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA212,913A CA1002799A (en) 1974-11-04 1974-11-04 Audio-visual projection apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA212,913A CA1002799A (en) 1974-11-04 1974-11-04 Audio-visual projection apparatus

Publications (1)

Publication Number Publication Date
CA1002799A true CA1002799A (en) 1977-01-04

Family

ID=4101523

Family Applications (1)

Application Number Title Priority Date Filing Date
CA212,913A Expired CA1002799A (en) 1974-11-04 1974-11-04 Audio-visual projection apparatus

Country Status (1)

Country Link
CA (1) CA1002799A (en)

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