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Topper Manufacturing Corporation Patents |
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Assignee: Topper Manufacturing Corporation
Address: Torrance, CA
No. of patents: 3
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 4432619 |
Compact collapsible microform viewer |
February 21, 1984 |
| A microform viewer has a case section pivotally mounting a screen, to move from a collapsed position to a viewing position, and slidably receiving a two-part projection section that telescopes into the case section. As the projection section moves into and out of the case section it posi |
| 4358184 |
Compact collapsible microform viewer |
November 9, 1982 |
| A microform viewer has a case section pivotally mounting a screen, to move from a collapsed position to a viewing position, and slidably receiving a two-part projection section that telescopes into the case section. As the projection section moves into and out of the case section it posi |
| 4327974 |
Microform viewer |
May 4, 1982 |
| A portable microform viewer provides a short film path through a film transporter that adjustably positions the film in two directions by means of a pair of concentric knobs. A pair of projecting lenses is shiftably mounted for selection of one or the other and the two are mounted on a |
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