4. Furnaces
  5. With exhaust gas treatment means

David B. Schumacher

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Combustion air blower motor isolating spring

Pumps – Motor driven – Resiliently mounted pump or motor
Patent

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Condensate drain system

Furnaces – With exhaust gas treatment means
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Condensate isolator and drainage system for furnace

Stoves and furnaces – Hot-air furnaces – Compressed air
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Furnace protective device

Combustion – Timer – programmer – retarder or condition responsive control
Patent

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Profile ID: LFUS-PAI-P-277348

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