-
2470472
-
Patent number 2,470,472
-
Issue date May 17, 1949
-
B66 - HOISTING LIFTING HAULING
-
2227572
-
Patent number 2,227,572
-
Issue date Jan 7, 1941
-
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
-
1595004
-
Patent number 1,595,004
-
Issue date Aug 3, 1926
-
B66 - HOISTING LIFTING HAULING
-
1430655
-
Patent number 1,430,655
-
Issue date Oct 3, 1922
-
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL