Dieter Welters

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Dusseldorf, DE

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for lubricating tools on metal extrusion presses
- Patent number 4,426,865
- Issue date Jan 24, 1984
- SMS Schloemann-Siemag Aktiengesellschaft
- Alfred Steinmetz
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...