4. H - Electricity
  5. 04
  6. B

Yuzo Usui

H - Electricity – 04 – B

Inventor

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Inventor

Country: Japan

Constant current circuit and an oscillating circuit...

G - Physics – 06 – F
Patent

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Ic card-type radio communication device

H - Electricity – 04 – B
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Profile ID: LFCA-PAI-P-1753465

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