4. Chemistry of inorganic compounds
  5. Sulfur or compound thereof
  6. Oxygen containing

Helmut Diekmann

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Control system for glass-top cooking unit

Stoves and furnaces – Stoves – Cooking
Patent

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Corrosion inhibitor for protecting metallic materials in...

Chemical apparatus and process disinfecting – deodorizing – preser – Process disinfecting – preserving – deodorizing – or sterilizing – Maintaining environment nondestructive to metal
Reexamination Certificate

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Gas-fired ceramic-cooktop burner

Stoves and furnaces – Stoves – Cooking
Patent

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Process of producing sulfuric acid

Chemistry of inorganic compounds – Sulfur or compound thereof – Oxygen containing
Patent

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Ventilated glass-top cooking unit

Stoves and furnaces – Stoves – Cooking
Patent

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Profile ID: LFUS-PAI-P-782623

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