4. H - Electricity
  5. 02
  6. M

Donald R. Duff

H - Electricity – 02 – M

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Automatic switching voltage adapter for calculating system

H - Electricity – 02 – M
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Structure and method of making a low-cost shock-resistant watch

G - Physics – 04 – C
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Profile ID: LFCA-PAI-P-324068

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