4. Electricity: motive power systems
  5. Battery-fed motor systems

Charles D. Rogers

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Drilling optimization searching and control apparatus

Boring or penetrating the earth – Automatic control – Of advance or applied tool weight
Patent

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Drilling optimization searching and control method

Boring or penetrating the earth – Automatic control – Of advance or applied tool weight
Patent

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Metal detector apparatus and method

Classifying – separating – and assorting solids – Sorting special items – and certain methods and apparatus for... – Signalling – indicating – or display means
Patent

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Vehicle control system

Electricity: motive power systems – Battery-fed motor systems
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Profile ID: LFUS-PAI-P-428197

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