Number | Name | Date | Kind |
---|---|---|---|
240966 | Chappell | May 1881 | |
1838553 | Kadow et al. | Dec 1931 | |
2618911 | Indge | Nov 1952 | |
2688215 | Roshong et al. | Sep 1954 | |
2822647 | Rips et al. | Feb 1958 | |
2963830 | Hook | Dec 1960 | |
2979868 | Emeis | Apr 1961 | |
3225492 | Day et al. | Dec 1965 | |
3537214 | Ford | Nov 1970 | |
3691694 | Goetz et al. | Sep 1972 | |
3791083 | Messerschmidt | Feb 1974 | |
3848365 | Bovensiepen et al. | Nov 1974 | |
3898770 | Benz et al. | Aug 1975 | |
3925936 | Orlov et al. | Dec 1975 | |
3986433 | Walsh et al. | Oct 1976 | |
4007560 | Janssen | Feb 1977 | |
4194324 | Bonora et al. | Mar 1980 | |
4205489 | Orlov et al. | Jun 1980 | |
4315383 | Day | Feb 1982 | |
4459785 | Zimmer | Jul 1984 | |
4502252 | Iwabuchi | Mar 1985 | |
4592169 | Klievoneit et al. | Jun 1986 | |
4593495 | Kawakami et al. | Jun 1986 | |
4707945 | Arai | Nov 1987 | |
4742651 | Wittstock | May 1988 | |
4773185 | Taira | Sep 1988 | |
4805348 | Arai et al. | Feb 1989 | |
4860498 | Gosis | Aug 1989 | |
4916868 | Wittstock | Apr 1990 | |
4962616 | Wittstock | Oct 1990 | |
5016399 | Vinson | May 1991 | |
5121572 | Hilscher | Jun 1992 | |
5140774 | Onodera | Aug 1992 | |
5205082 | Shendon et al. | Apr 1993 | |
5329732 | Karlsrud et al. | Jul 1994 | |
5377451 | Leoni et al. | Jan 1995 | |
5595529 | Cesna et al. | Jan 1997 | |
5645472 | Nagahaski et al. | Jul 1997 |
Entry |
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SpeedFam-Spitfire Brochure entitled "Double-Sided Abrasive Machining System 360", Copyright 1994. |