4. Medical and laboratory equipment
  5. Equipment for diagnosis, analysis, or treatment
  6. Orthopedic or chiropractic

Watkins Manufacturing Corporation

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Corporate Assignee

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Air check valve system for a spa

Baths – closets – sinks – and spittoons – Tubs – Means for agitating or circulating water in a tub
Reexamination Certificate

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Apparatus for measuring chemical levels using pH shift

Optics: measuring and testing – For light transmission or absorption – Of fluent material
Reexamination Certificate

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Cartridge heater system

Electric resistance heating devices – Heating devices – Continuous flow type fluid heater
Patent

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Combined spa and cover

Medical and laboratory equipment – Equipment for diagnosis – analysis – or treatment – Article for topical care – nursing or rehabilitation
Patent

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Dry hydro-massage unit

Baths – closets – sinks – and spittoons – Tubs – Combined with diverse means
Patent

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Profile ID: LFUS-PAI-P-314142

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