Number | Name | Date | Kind |
---|---|---|---|
661353 | Moore et al. | Nov 1900 | |
1095757 | Wentz | May 1914 | |
2892264 | Armstrong | Jun 1959 | |
2993282 | Daane et al. | Jul 1961 | |
3034225 | Hieronymus | May 1962 | |
3242583 | Calkins | Mar 1966 | |
3264754 | Kutchera | Aug 1966 | |
3276141 | Barnscheidt et al. | Oct 1966 | |
3640000 | Lee et al. | Feb 1972 |
Entry |
---|
PCT/US80/00329, Oct. 16, 1980, Steffero. |