4. F - Mech Eng,Light,Heat,Weapons
  5. 16
  6. L

Herman E. Frentzel

F - Mech Eng,Light,Heat,Weapons – 16 – L

Inventor

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Details

Inventor

Country: United States Of America

Automatic swimming pool cleaner

E - Fixed Constructions – 04 – H
Patent

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Automatic swimming pool cleaner

E - Fixed Constructions – 04 – H
Patent

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Automatic valve for use with pool cleaning device

F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent

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Dual-use and manual pool cleaning apparatus

E - Fixed Constructions – 04 – H
Patent

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Low pressure pool cleaner

B - Operations – Transporting – 08 – B
Patent

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Skimmer cover plate

G - Physics – 05 – D
Patent

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Profile ID: LFCA-PAI-P-1170033

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