-
-
-
-
3041660
-
Patent number 3,041,660
-
Issue date Jul 3, 1962
-
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
-
2205112
-
Patent number 2,205,112
-
Issue date Jun 18, 1940
-
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
-
2161442
-
Patent number 2,161,442
-
Issue date Jun 6, 1939
-
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL