4. Baths, closets, sinks, and spittoons
  5. Flush closet
  6. Bowl

Kuo L. Tsai

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Automatic umbrella

Tent – canopy – umbrella – or cane – Umbrella – Self-opening and closing
Patent

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Ball point pen writing instrument

Coating implements with material supply – Including ball – roller or endless-belt tool – Ball
Patent

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Nib replaceable writing instrument

Coating implements with material supply – Including ball – roller or endless-belt tool – Ball
Patent

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Self-shut type lock device

Locks – Operating mechanism – Key
Patent

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Water-saving toilet bowl

Baths – closets – sinks – and spittoons – Flush closet – Bowl
Patent

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Profile ID: LFUS-PAI-P-698360

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