4. Electricity: circuit makers and breakers
  5. Fluid pressure
  6. Plural switch

Peter M. Tracey

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Optical fibre sensors with strip portions having a series of tra

Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent

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Remotely operable master and slave switch

Electricity: circuit makers and breakers – Fluid pressure – Diaphragm
Patent

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Remotely pressure-operable electrical switch

Electricity: circuit makers and breakers – Fluid pressure – Plural switch
Patent

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Suction-actuated control system for whirlpool bath/spa installat

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

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Profile ID: LFUS-PAI-P-1099948

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