FR645653A - Dispositif de projection - Google Patents

Dispositif de projection

Info

Publication number
FR645653A
FR645653A FR645653DA FR645653A FR 645653 A FR645653 A FR 645653A FR 645653D A FR645653D A FR 645653DA FR 645653 A FR645653 A FR 645653A
Authority
FR
France
Prior art keywords
projection device
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
Other languages
English (en)
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.)
ZEISS CARL SOC
Original Assignee
ZEISS CARL SOC
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 ZEISS CARL SOC filed Critical ZEISS CARL SOC
Application granted granted Critical
Publication of FR645653A publication Critical patent/FR645653A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F19/00—Advertising or display means not otherwise provided for
    • G09F19/12—Advertising or display means not otherwise provided for using special optical effects
    • G09F19/18—Advertising or display means not otherwise provided for using special optical effects involving the use of optical projection means, e.g. projection of images on clouds

Landscapes

  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Marketing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
FR645653D 1927-01-07 1927-12-13 Dispositif de projection Expired FR645653A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE645653X 1927-01-07

Publications (1)

Publication Number Publication Date
FR645653A true FR645653A (fr) 1928-10-30

Family

ID=6580745

Family Applications (1)

Application Number Title Priority Date Filing Date
FR645653D Expired FR645653A (fr) 1927-01-07 1927-12-13 Dispositif de projection

Country Status (1)

Country Link
FR (1) FR645653A (fr)

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