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Arnaldo Rojek
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Sao Paulo, BR
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last 30 patents
Information
Patent Grant
Device for stretching and molding can bodies
Patent number
6,442,991
Issue date
Sep 3, 2002
Metalgrafica Rojek LTDA.
Arnaldo Rojek
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Vacuum-closure cans having non-nailed, easy-opening metallic lids
Patent number
5,881,897
Issue date
Mar 16, 1999
Metalgrafica Rojek Ltda.
Arnaldo Rojek
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Metal lids for vacuum-sealing of packaging for foodstuff preserves
Patent number
5,833,090
Issue date
Nov 10, 1998
Metalgrafica Rojek Ltda.
Arnaldo Rojek
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Cans for foodstuff packing with easily removable unclinched metal c...
Patent number
5,566,854
Issue date
Oct 22, 1996
Metalgrafica Rojek Ltda.
Arnaldo Rojek
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Manufacturing process for cans for foodstuff packing, equipping the...
Patent number
5,566,568
Issue date
Oct 22, 1996
Metalgrafica Rojek Ltda.
Arnaldo Rojek
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Lid with a pressure release hole and a removable seal, for vacuum s...
Patent number
5,439,724
Issue date
Aug 8, 1995
Metalgrafica Rojek Ltda.
Arnaldo Rojek
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Process to form a pressure release hole with removable seal, for ea...
Patent number
5,275,679
Issue date
Jan 4, 1994
Metalgrafica Rojek Ltda.
Arnaldo Rojek
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL