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Raymond-Yves Deroche
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Thionville, FR
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last 30 patents
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Patent Grant
Straightened rail
Patent number
4,755,238
Issue date
Jul 5, 1988
Unimetal
Raymond-Yves Deroche
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Machine for straightening and stress-relieving steel rails
Patent number
4,726,212
Issue date
Feb 23, 1988
Unimetal
Raymond Y. Deroche
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Method for straightening a rail and straightened rail
Patent number
4,597,283
Issue date
Jul 1, 1986
Societe Anonyme Dite: SACILOR
Raymond-Yves Deroche
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...