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

John M. Donnelly

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Differential pressure switch assembly with high static pressure

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

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Process control instrument with multiple functions

Communications: electrical – Condition responsive indicating system – With particular coupling link
Reexamination Certificate

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Profile ID: LFUS-PAI-P-815620

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