4. Baths, closets, sinks, and spittoons
  5. Tubs
  6. Convenience accessories

Robert L. Campbell

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Concentric internal combustion rotary engine

Internal-combustion engines – Rotary – With compression – combustion – and expansion in a single...
Reexamination Certificate

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Construction of thermostable mutants of a low molecular mass xyl

Chemistry: molecular biology and microbiology – Enzyme – proenzyme; compositions thereof; process for... – Hydrolase
Patent

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Expandable impeller pump

Fluid reaction surfaces (i.e. – impellers) – Working member foldable – pivotable or collapsible to non-use...
Reexamination Certificate

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Expandable impeller pump

Fluid reaction surfaces (i.e. – impellers) – Working member foldable – pivotable or collapsible to non-use...
Reexamination Certificate

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Expandable impeller pump

Rotary kinetic fluid motors or pumps – Runner or blade selectively adjustable relative to casing – Axially adjusted
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Profile ID: LFUS-PAI-P-116314

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