4. Bleaching and dyeing; fluid treatment and chemical modification
  5. Treatment of hides, skins, feathers and animal tissues
  6. Tanning

Alan Liang

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Electric door lock openable by key

Locks – Special application – For closures
Reexamination Certificate

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Electric lock device

Bleaching and dyeing; fluid treatment and chemical modification – Treatment of hides – skins – feathers and animal tissues – Tanning
Design Patent

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Tubular door lock having selective actuators

Closure fasteners – Adjustable backset
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2811800

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