Number | Name | Date | Kind |
---|---|---|---|
756631 | Herbert | Apr 1904 | |
936281 | Woolsey | Oct 1909 | |
1127139 | West | Feb 1915 | |
1215588 | Strauss | Feb 1917 | |
1254155 | Parker | Jan 1918 | |
1436544 | Starr | Nov 1922 | |
1438805 | Ambler | Dec 1922 | |
2807908 | Lykes | Oct 1957 | |
3409265 | Wichers | Nov 1968 | |
4508306 | Kemmerer, Jr. | Apr 1985 | |
5025353 | Menageo | Jun 1991 |
Number | Date | Country |
---|---|---|
1604417 | Dec 1981 | GBX |
Entry |
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Dialog.TM. Computer Database (World Patent Index) Abstract of South African Patent No. 8503727 (Jul. 1, 1986). |