4. A - Human Necessities
  5. 21
  6. C

Hugh F. Groth

A - Human Necessities – 21 – C

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Cleaning device with suction nozzle and liquid and gas...

A - Human Necessities – 47 – L
Patent

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Cleaning device with suction nozzle and liquid and gas...

A - Human Necessities – 47 – L
Patent

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Electric gun for dispensing comestibles

A - Human Necessities – 21 – C
Patent

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Key duplicating machine with bottom clearance

B - Operations – Transporting – 23 – Q
Patent

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Lift assembly for transit vehicles

B - Operations – Transporting – 60 – P
Patent

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Profile ID: LFCA-PAI-P-33307

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