Number | Name | Date | Kind |
---|---|---|---|
420658 | Hayes | Feb 1890 | |
607071 | Ohl | Jul 1898 | |
1444376 | Guyse et al. | Feb 1923 | |
1927476 | Walker et al. | Sep 1933 | |
2949707 | Staelin | Aug 1960 | |
3204324 | Nilsen | Sep 1965 | |
3641710 | Heinelt | Feb 1972 | |
3754354 | Franlinna | Aug 1973 | |
4096678 | Diels et al. | Jun 1978 | |
4128934 | Doring | Dec 1978 | |
4179850 | Gillette | Dec 1979 | |
4619097 | Trummer et al. | Oct 1986 | |
4646479 | Walker et al. | Mar 1987 |
Number | Date | Country |
---|---|---|
2709786 | Jun 1978 | DEX |
2008655 | Jun 1979 | GBX |
Entry |
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Sketch of Prior Art Machine for Mechanically Abrading Extrusions. |