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

Wu Feng Qing

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Contoured push button handle for a storm door

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

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Door closer with pre-set stops

Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Closers – Spring and lever
Reexamination Certificate

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Storm door mortise lock that prevents lockout

Locks – Special application – For closures
Reexamination Certificate

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Storm door push or turn lock method of using same

Closure fasteners – Bolts – Swinging
Reexamination Certificate

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