GB1231294A - - Google Patents

Info

Publication number
GB1231294A
GB1231294A GB1231294DA GB1231294A GB 1231294 A GB1231294 A GB 1231294A GB 1231294D A GB1231294D A GB 1231294DA GB 1231294 A GB1231294 A GB 1231294A
Authority
GB
United Kingdom
Prior art keywords
holder
document
magnetic
magnets
aug
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)
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 filed Critical
Publication of GB1231294A publication Critical patent/GB1231294A/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
    • G03B27/00—Photographic printing apparatus
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/52—Details
    • G03B27/62—Holders for the original
    • G03B27/6207—Holders for the original in copying cameras
    • G03B27/6214—Copy boards

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Overhead Projectors And Projection Screens (AREA)
  • Holders For Sensitive Materials And Originals (AREA)
GB1231294D 1968-08-29 1969-08-21 Expired GB1231294A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6812268A NL6812268A (enrdf_load_stackoverflow) 1968-08-29 1968-08-29

Publications (1)

Publication Number Publication Date
GB1231294A true GB1231294A (enrdf_load_stackoverflow) 1971-05-12

Family

ID=19804486

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1231294D Expired GB1231294A (enrdf_load_stackoverflow) 1968-08-29 1969-08-21

Country Status (3)

Country Link
BE (1) BE738138A (enrdf_load_stackoverflow)
GB (1) GB1231294A (enrdf_load_stackoverflow)
NL (1) NL6812268A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2156096A (en) * 1984-03-16 1985-10-02 Wilfred Levin Accessory for use with an overhead projector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2156096A (en) * 1984-03-16 1985-10-02 Wilfred Levin Accessory for use with an overhead projector
US4632529A (en) * 1984-03-16 1986-12-30 Wilfred Levin Accessory for use with an overhead projector

Also Published As

Publication number Publication date
BE738138A (enrdf_load_stackoverflow) 1970-03-02
NL6812268A (enrdf_load_stackoverflow) 1970-03-03

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees