4. Machine element or mechanism
  5. Control lever and linkage systems
  6. Multiple controlled elements

David C. Harris

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Card file rail system insert

Office supplies; artists and teachers materials – Office equipment not elsewhere specified – Element or attachment
Patent

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Card tray

Office supplies; artists and teachers materials – Office equipment not elsewhere specified – Element or attachment
Patent

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Card tray

Office supplies; artists and teachers materials – Office equipment not elsewhere specified – Holder or file
Patent

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Card tray

Office supplies; artists and teachers materials – Office equipment not elsewhere specified – Holder or file
Patent

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Desktop modular assembly

Supports: racks – Sorting type – Desk file
Patent

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Profile ID: LFUS-PAI-P-70359

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