4. Gas separation
  5. Combined or convertible
  6. In environmental air enclosure

Richard F. Schaefer

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Clean air work station

Gas separation – Combined or convertible – In environmental air enclosure
Patent

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Dual faced interlocking support member

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

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Four faced interlocking support member

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

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Interlocking support post

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

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Large size clean air workstation

Gas separation – Combined or convertible – In environmental air enclosure
Reexamination Certificate

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Profile ID: LFUS-PAI-P-183415

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