-
-
-
3807287
-
Patent number 3,807,287
-
Issue date Apr 30, 1974
-
B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
-
3454441
-
Patent number 3,454,441
-
Issue date Jul 8, 1969
-
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
-
3302859
-
Patent number 3,302,859
-
Issue date Feb 7, 1967
-
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
-
2260267
-
Patent number 2,260,267
-
Issue date Oct 21, 1941
-
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
-
2086147
-
Patent number 2,086,147
-
Issue date Jul 6, 1937
-
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL