4. Card, picture, or sign exhibiting
  5. Changing exhibitor
  6. Sliding plate

Gerrit A. Van Exel

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Adjustable display device

Card – picture – or sign exhibiting – Changing exhibitor – Sliding plate
Patent

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Calculating device for conversions or the like

Printing and office machinery – Typewriter or calculator – Calculator
Patent

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Calculating indicator for games, displays or the like

Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Scorer or indicator for game or sport
Patent

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Optical adjustment knob for binocular

Patent

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Optical adjustment knob with spaced apart platforms

Patent

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Profile ID: LFUS-PAI-P-79063

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