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

Peter J. Kerl

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Counterbalance mechanism

Supports – Brackets – Adjustable
Patent

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Keyboard mounting mechanism

Supports – Brackets – Adjustable
Reexamination Certificate

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Keyboard support

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent

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Safety interlock braking system for height adjustable table

Horizontally supported planar surfaces – Vertically adjustable – With force-multiplying means
Reexamination Certificate

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Profile ID: LFUS-PAI-P-505030

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