Number | Name | Date | Kind |
---|---|---|---|
RE29760 | Brown et al. | Sep 1978 | |
2607792 | Warrick | Aug 1952 | |
2876234 | Hurwitz et al. | Mar 1959 | |
3035016 | Bruner | May 1962 | |
3065194 | Nitzsche et al. | Nov 1962 | |
3122522 | Brown et al. | Feb 1964 | |
3127363 | Nitzsche et al. | Mar 1964 | |
3133891 | Ceyzeriat | May 1964 | |
3161614 | Brown et al. | Dec 1964 | |
3334067 | Weyenberg | Aug 1967 | |
3542901 | Cooper et al. | Nov 1970 | |
3689454 | Smith et al. | Sep 1972 | |
3779986 | Smith et al. | Dec 1973 | |
4180642 | Takago | Dec 1979 | |
4248993 | Takago | Feb 1981 | |
4273698 | Smith, Jr. et al. | Jun 1981 |
Number | Date | Country |
---|---|---|
6501494 | Aug 1965 | NLX |
6611517 | Feb 1967 | NLX |
Entry |
---|
M. A. White et al., U.S. Pat. Ser. No. 277,524, filed Jun. 26, 1981. |
J. E. Hallgren, U.S. Pat. Ser. No. 277,525, filed Jun. 26, 1981. |