Number | Name | Date | Kind |
---|---|---|---|
RE24133 | Bloedow | Mar 1956 | |
RE29270 | Nelson | Jun 1977 | |
1308168 | Courvoisier | Jul 1919 | |
1513043 | Huff | Oct 1924 | |
1592524 | Holt | Jul 1926 | |
2036372 | Stough | Apr 1936 | |
3104775 | Champagnat | Sep 1963 | |
3374918 | Creith | Mar 1968 | |
3730122 | Odum et al. | May 1973 | |
3861555 | Nelson | Jan 1975 | |
4092790 | Sonerud | Jun 1978 | |
4243151 | Bruening | Jan 1981 | |
4244487 | Kern | Jan 1981 | |
4455798 | Tsakiris | Jun 1984 | |
4556337 | Marshall | Dec 1985 | |
5005724 | Imhof | Apr 1991 | |
5078293 | Lippiello | Jan 1992 |
Number | Date | Country |
---|---|---|
400502 | Apr 1966 | CHX |
Entry |
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Patent Corporation Treaty International Search Report for International Application No. PCT/US94/03064, Jun. 14, 1994. |