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Josef Gerretz
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Viersen, DE
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last 30 patents
Information
Patent Grant
Method of equalizing the torque on a drive of a pilger rolling mill
Patent number
5,291,108
Issue date
Mar 1, 1994
Mannesmann Aktiengesellschaft
Josef Gerretz
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Cold pilger rolling mill with reciprocating roll stand
Patent number
5,224,369
Issue date
Jul 6, 1993
Mannesmann Aktiengesellschaft
Klaus Rehag
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Cold pilgrim rolling
Patent number
5,125,253
Issue date
Jun 30, 1992
Mannesmann AG
Josef Gerretz
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Drive for a pilger cold rolling mill
Patent number
5,076,088
Issue date
Dec 31, 1991
Mannesmann AG
Herman J. Klingen
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Apparatus for rotating and advancing stock in pilgrim step cold rol...
Patent number
5,035,132
Issue date
Jul 30, 1991
Mannesmann AG
Josef Gerretz
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Method of pilgrim step rolling
Patent number
5,022,250
Issue date
Jun 11, 1991
Mannesmann AG
Josef Gerretz
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Loop transport system for a plurality of baskets containing materia...
Patent number
4,890,470
Issue date
Jan 2, 1990
Mannesmann Aktiengesellschaft
Josef Gerretz
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Drive for a pilger cold-rolling mill with balancing of masses and m...
Patent number
4,858,458
Issue date
Aug 22, 1989
Mannesmann Aktiengesellschaft
Josef Gerretz
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
System for the continuous operation of a cold pilger rolling mill
Patent number
4,577,483
Issue date
Mar 25, 1986
Mannesmann Demag Wean
Klaus Rehag
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Bearing construction of a crankshaft of a cold Pilger rolling mill,...
Patent number
4,547,082
Issue date
Oct 15, 1985
Mannesmann Demag Wean
Josef Gerretz
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...