4. G - Physics
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Charles T. Fromknecht

G - Physics – 01 – L

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Carpet pile sensor and indicator for carpet cleaner

A - Human Necessities – 47 – L
Patent

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Moisture sealing device for toggle switches

H - Electricity – 01 – H
Patent

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Vacuum cleaner condition indicator and safety device

A - Human Necessities – 47 – L
Patent

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Vacuum cleaner filter assembly

B - Operations – Transporting – 01 – D
Patent

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Vacuum cleaner filter bag condition indicator

G - Physics – 01 – L
Patent

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Profile ID: LFCA-PAI-P-36998

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