4. Measuring and testing
  5. Measuring vessel
  6. With depth indication

Elwood Marple

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Liquid level marker for container

Measuring and testing – Measuring vessel – With depth indication
Patent

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Purse holder

Travel goods and personal belongings – Umbrella or parasol – walking support – Cane or walking support
Patent

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Rotary low pressure air displacement pump

Pumps – Three or more cylinders arranged in parallel – radial – or... – Radial cylinders
Patent

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Sewage treatment system

Baths – closets – sinks – and spittoons – Dry closets
Patent

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Swimming pool solar heater

Stoves and furnaces – Tool having fluid fuel burner – Soldering iron
Patent

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Profile ID: LFUS-PAI-P-492431

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