4. Measuring, testing, or signalling instruments
  5. Watch, wristwatch or case

Yoichi Hirata

Inventor

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Hydraulic test system mounted with borehole television set for s

Measuring and testing – Borehole or drilling – During drilling
Patent

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Low-water-pressure controlled hydrologic test method

Measuring and testing – Borehole or drilling – Downhole test
Patent

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Semiconductor apparatus

Static information storage and retrieval – Read/write circuit – Including signal comparison
Reexamination Certificate

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Semiconductor apparatus

Static information storage and retrieval – Read/write circuit – Including signal comparison
Reexamination Certificate

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Watch case

Measuring – testing – or signalling instruments – Watch – wristwatch or case
Patent

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Profile ID: LFUS-PAI-P-1120336

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