4. Stoves and furnaces
  5. Melting furnaces

Donald Onken

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Economical heated grease storage tank

Electric resistance heating devices – Heating devices – Tank or container type liquid heater
Reexamination Certificate

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Sensing device for monitoring conditions at a remote...

Telephonic communications – Telephone line or system combined with diverse electrical... – Remote indication over telephone line
Reexamination Certificate

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Sensing method for monitoring conditions for a remote location

Telephonic communications – Telephone line or system combined with diverse electrical... – Remote indication over telephone line
Reexamination Certificate

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Waste grease collection tank and method for its use

Stoves and furnaces – Melting furnaces
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2936862

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