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Feldmuhle Aktiengesellschaft
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Duesseldorf, DE, US
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Patents Grants
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Patent Grant
Valve guide for an internal combustion engine
Patent number
4,716,869
Issue date
Jan 5, 1988
Feldmuhle Aktiengesellschaft
Ulf Dworak
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES