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Jozef Pieczyk
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Walce, PL
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last 30 patents
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Patent Grant
Rolling mill for forming cross ribbed pipes
Patent number
4,312,207
Issue date
Jan 26, 1982
Zaklad Doswiadczalny Przy Zakladach Urzadzen Chemiczynch "Metalchem"
Janusz Przybyla
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Patent Grant
Method and apparatus for forming cross ribbed pipes
Patent number
4,153,982
Issue date
May 15, 1979
Zaklad Doswiadczaln przy Zakladach Urzadzen Chemicznych "Metalchem"
Janusz Przybyla
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...