David M. Shaver

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Battery charging system

Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells
Patent

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Battery charging system and method

Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells
Patent

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Dual on/off switch actuation for a power head of an upright...

Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Reexamination Certificate

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Electro-mechanical interlock and module system for lawn mower or

Harvesters – Motorized harvester – With randomly-operative control of motor
Patent

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Electro-mechanical interlock and module system for lawn mower or

Harvesters – Motorized harvester – With randomly-operative control of motor
Patent

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Profile ID: LFUS-PAI-P-427516

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