Number | Name | Date | Kind |
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3268742 | Pinckaers | Aug 1966 | A |
3623564 | Higginbotham | Nov 1971 | A |
3765695 | McGregor | Oct 1973 | A |
3854541 | Hollnagel | Dec 1974 | A |
3867991 | Brandli | Feb 1975 | A |
3899036 | Hollnagel | Aug 1975 | A |
3967692 | Hoffamn | Jul 1976 | A |
4025082 | Lummus | May 1977 | A |
4291892 | Berthold et al. | Sep 1981 | A |
4595211 | Fitzpatrick | Jun 1986 | A |
5145201 | Metheny | Sep 1992 | A |
5165709 | Jacques | Nov 1992 | A |
5360220 | Simmons | Nov 1994 | A |
5700020 | Noble | Dec 1997 | A |
5836594 | Simmons | Nov 1998 | A |
6039136 | Kanan | Mar 2000 | A |
6086101 | Cormican | Jul 2000 | A |
6378889 | Moriyama et al. | Apr 2002 | B1 |
Entry |
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U.S. patent application Publication No. US 2001/0013687, Aug. 16, 2001. |