4. Recording, communication, or information retrieval equipment
  5. Video or audio transmission, recording or playback equipment
  6. Telephone equipment

Donald R. Pangborn

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Adjustable work surface

Horizontally supported planar surfaces – Horizontally adjustable – Concurrent horizontal and vertical movements
Patent

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Brake operational control

Horizontally supported planar surfaces – Vertically adjustable – Articulated link shifts surface
Patent

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Computer desk

Horizontally supported planar surfaces – With machine
Reexamination Certificate

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Counterbalance mechanism

Supports – Brackets – Adjustable
Patent

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Holder for supporting a component below a support

Supports – Suspended supports
Patent

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Profile ID: LFUS-PAI-P-505028

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