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Maquinas Npu Ltda.
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Sao Paulo, BR
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Patents Grants
last 30 patents
Information
Patent Grant
Machine for making unitized stacks of bags
Patent number
4,692,134
Issue date
Sep 8, 1987
Maquinas Npu Ltda.
Carlos R. dos Santos Copia
B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
Information
Patent Grant
Cutting/sealing device for plastic bag making machines
Patent number
4,449,962
Issue date
May 22, 1984
Maquinas Npu Ltda.
Carlos R. D. S. Copia
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL