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John W. Hoover

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Head support and positioning assembly for record/playback...

G - Physics – 11 – B
Patent

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Portable dictating machine

G - Physics – 11 – B
Patent

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Tape cassette

G - Physics – 11 – B
Patent

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Tape cassette

G - Physics – 11 – B
Patent

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Vacuum cleaner suction tool for cleaning deep pile shag rugs

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Patent

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Profile ID: LFCA-PAI-P-478831

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