Wilmington, DE, US
Information
Patent Grant
E. I. Du Pont de Nemours and Company
August Ferretti
C30 - CRYSTAL GROWTH
Information
Patent Grant
E. I. Du Pont de Nemours and Company
Oral R. Van Buskirk
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
E. I. Du Pont de Nemours and Company
William Allen Doerner
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
E. I. Du Pont de Nemours and Company
William Allen Doerner
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
E. I. Du Pont de Nemours and Company
William A. Doerner
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
E. I. Du Pont de Nemours and Company
William A. Doerner
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
