4. Lubrication
  5. Safety alarm or indicating means

Donald E. DeWitt

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Adaptable electrical tubing system

Electricity: conductors and insulators – Conduits – cables or conductors – Single duct conduits
Reexamination Certificate

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Adjustable keyboard support

Supports – Brackets – Adjustable
Reexamination Certificate

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Articulated support device

Supports – Brackets – Adjustable
Reexamination Certificate

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Differential pressure transducer

Lubrication – Safety alarm or indicating means
Patent

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Electrical connector system

Electricity: circuit makers and breakers – Combined with or actuated by connector coupling – Coupling-actuated switch
Reexamination Certificate

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Profile ID: LFUS-PAI-P-279387

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