Elkridge, MD, US
Information
Patent Grant
W. R. Grace & Co.-Conn.
William A. Whittenberger
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
W. R. Grace & Co.
Steven S. Edson
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
