4. G - Physics
  5. 01
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James S. Mark

G - Physics – 01 – R

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Apparatus for auxiliary power supply from a generator field

H - Electricity – 02 – P
Patent

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Controlled start circuit for locomotives

B - Operations – Transporting – 60 – L
Patent

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Electric timer

H - Electricity – 03 – K
Patent

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Infra-red telemetry system

G - Physics – 08 – C
Patent

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Lighting control interface apparatus

H - Electricity – 01 – H
Patent

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Profile ID: LFCA-PAI-P-273603

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