GB342924A - - Google Patents

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Publication number
GB342924A
GB342924A GB342924DA GB342924A GB 342924 A GB342924 A GB 342924A GB 342924D A GB342924D A GB 342924DA GB 342924 A GB342924 A GB 342924A
Authority
GB
United Kingdom
Prior art keywords
class
film
taking
lens
frankforton
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.)
Active
Application number
Other languages
English (en)
Publication of GB342924A publication Critical patent/GB342924A/en
Active legal-status Critical Current

Links

Landscapes

  • Overhead Projectors And Projection Screens (AREA)
GB342924D Active GB342924A (https=)

Publications (1)

Publication Number Publication Date
GB342924A true GB342924A (https=)

Family

ID=1743850

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
GB (1) GB342924A (https=)

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