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Hans-Gerd Rittel
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Wendlingen, DE
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last 30 patents
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Patent Grant
Ceramic sliding element with aluminum oxide and silicon nitride mem...
Patent number
4,728,582
Issue date
Mar 1, 1988
Feldmuehle Aktiengesellschaft
Hans-Jurgen Comans
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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Patent Grant
Valve assembly with silencer
Patent number
4,375,824
Issue date
Mar 8, 1983
Feldmuhle Aktiengesellschaft
Horst von Borries
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...