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Patents Grants
last 30 patents
Information
Patent Grant
Method and apparatus for winding and forming cooling coils
Patent number
4,085,488
Issue date
Apr 25, 1978
Benteler-Werke Aktiengesellschaft Werk Neuhaus
Eckehard Hanert
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Apparatus for welding rolled seams
Patent number
3,996,444
Issue date
Dec 7, 1976
Benteler -Werke Aktiengesellschaft Werk Neuhaus
Helmut Benteler
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR