railway wheel rims

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Patents Grantslast 30 patents

Information Patent Grant
Material saving method for truing track wheels
- Patent number 4,680,846
- Issue date Jul 21, 1987
- Wilhelm Hegenscheidt GmbH
- Herbert Feldewert
- B60 - VEHICLES IN GENERAL
Information Patent Grant
1442636
- Patent number 1,442,636
- Issue date Jan 16, 1923
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
1371009
- Patent number 1,371,009
- Issue date Mar 8, 1921
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
1327635
- Patent number 1,327,635
- Issue date Jan 13, 1920
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...