Wilmington, DE, US
Information
Patent Grant
E. I. Du Pont de Nemours & Co.
Henry Wischusen
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
E. I. Du Pont de Nemours & Co.
Richard J. Fletcher
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
