GB158874A - A compact automatic optical projecting apparatus for advertising - Google Patents

A compact automatic optical projecting apparatus for advertising

Info

Publication number
GB158874A
GB158874A GB2787/21A GB278721A GB158874A GB 158874 A GB158874 A GB 158874A GB 2787/21 A GB2787/21 A GB 2787/21A GB 278721 A GB278721 A GB 278721A GB 158874 A GB158874 A GB 158874A
Authority
GB
United Kingdom
Prior art keywords
advertising
projecting apparatus
automatic optical
compact automatic
optical projecting
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
GB2787/21A
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
Publication of GB158874A publication Critical patent/GB158874A/en
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
    • G03B21/14—Details
    • G03B21/16—Cooling; Preventing overheating
GB2787/21A 1920-02-12 1921-01-21 A compact automatic optical projecting apparatus for advertising Expired GB158874A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR158874X 1920-02-12

Publications (1)

Publication Number Publication Date
GB158874A true GB158874A (en) 1922-04-20

Family

ID=8876422

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2787/21A Expired GB158874A (en) 1920-02-12 1921-01-21 A compact automatic optical projecting apparatus for advertising

Country Status (1)

Country Link
GB (1) GB158874A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5232940A (en) * 1985-12-20 1993-08-03 Hatton Leslie R Derivatives of N-phenylpyrazoles
US5547974A (en) * 1985-12-20 1996-08-20 Rhone-Poulenc Agriculture Ltd. Derivatives of N-phenylpyrazoles
US6372774B1 (en) 1985-12-20 2002-04-16 Rhone-Poulenc Agriculture Ltd. Derivatives of N-phenylpyrazoles

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5232940A (en) * 1985-12-20 1993-08-03 Hatton Leslie R Derivatives of N-phenylpyrazoles
US5547974A (en) * 1985-12-20 1996-08-20 Rhone-Poulenc Agriculture Ltd. Derivatives of N-phenylpyrazoles
US5608077A (en) * 1985-12-20 1997-03-04 Rhone-Poulenc Agriculture Ltd. Derivatives of n-phenylpyrazoles
US5714191A (en) * 1985-12-20 1998-02-03 Rhone-Poulenc Agriculture Ltd. Derivatives of N-phenylpyrazoles
US5916618A (en) * 1985-12-20 1999-06-29 Rhone-Poulenc Agriculture Ltd. Derivatives of N-phenylpyrazoles
US6372774B1 (en) 1985-12-20 2002-04-16 Rhone-Poulenc Agriculture Ltd. Derivatives of N-phenylpyrazoles

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