-
-
-
-
-
-
-
-
-
3826477
-
Patent number 3,826,477
-
Issue date Jul 30, 1974
-
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
-
3599292
-
Patent number 3,599,292
-
Issue date Aug 17, 1971
-
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL