4. Measuring, testing, or signalling instruments
  5. Measuring, regulating or indicating instrument, or casing
  6. Electrical property

Junichi Koyano

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Explosion-proof portable gas detector

Measuring and testing – Instrument casing
Reexamination Certificate

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Gas suction pump device, gas feed adapter and gas alarm unit

Pumps – With signal – indicator – or inspection means
Reexamination Certificate

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Portable gas alarm device

Communications: electrical – Condition responsive indicating system – Specified housing
Reexamination Certificate

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Wrist watch type gas measuring device

Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Electrical property
Patent

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Profile ID: LFUS-PAI-P-1047410

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