4. Stoves and furnaces
  5. Fireplaces or accessories
  6. Fluid fuel

Gunther Berthold

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Method and apparatus for preventing impingement of yellow flames

Stoves and furnaces – Fireplaces or accessories – Fluid fuel
Patent

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Method and apparatus for reducing nitrogen dioxide (NO2)...

Combustion – Timer – programmer – retarder or condition responsive control – With test circuit checking or analyzing flame sensing...
Reexamination Certificate

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Method of reducing CO and NOx emissions in a heating...

Stoves and furnaces – Fireplaces or accessories – Fluid fuel
Reexamination Certificate

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Profile ID: LFUS-PAI-P-439286

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