4. Electrical transmission or interconnection systems
  5. Switching systems
  6. Condition responsive

Hiromu Itoh

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Air cooling device and air cooling method

Refrigeration – Processes – Gas and liquid contact
Reexamination Certificate

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Digitalized position control for a D.C. motor

Electricity: motive power systems – Positional servo systems – Multiple mode systems
Patent

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Light sensitive switching circuit

Electrical transmission or interconnection systems – Switching systems – Condition responsive
Patent

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Method and device for cleaning air

Gas separation: processes – Liquid contacting – On surface extending mass
Reexamination Certificate

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Solid insulator and method of manufacturing the same

Electricity: conductors and insulators – Insulators – Combined
Patent

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Profile ID: LFUS-PAI-P-671251

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