4. Baths, closets, sinks, and spittoons
  5. Tubs
  6. Means for agitating or circulating water in a tub

Takashi Hatai

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Carbonate spring bath system

Baths – closets – sinks – and spittoons – Tubs – Means for agitating or circulating water in a tub
Patent

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Field emission electron source and production method thereof

Electric lamp and discharge devices – Discharge devices having a thermionic or emissive cathode
Reexamination Certificate

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Field emission electron source, method of producing the...

Electric lamp and discharge devices – Discharge devices having a multipointed or serrated edge...
Reexamination Certificate

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Field emission type electron source

Active solid-state devices (e.g. – transistors – solid-state diode – Thin active physical layer which is – Low workfunction layer for electron emission
Reexamination Certificate

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Field emission-type electron source

Electric lamp and discharge devices – Discharge devices having a thermionic or emissive cathode
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2005954

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