4. Communications: electrical
  5. Condition responsive indicating system
  6. Specific condition

Edward Jeffers

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Automatic leak detector

Communications: electrical – Condition responsive indicating system – Specific condition
Patent

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Compressor tester cabinet

Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Weight – force or density
Design Patent

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Device for automatic processing of contaminated refrigerant...

Refrigeration – With means for charging closed refrigeration producing system
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1710145

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