Number | Name | Date | Kind |
---|---|---|---|
1585333 | Massalle et al. | May 1926 | |
1827283 | Forest | Oct 1931 | |
1913645 | Stenger | Jun 1933 | |
1939922 | Rockwell | Dec 1933 | |
1974770 | Engholm | Sep 1934 | |
2002189 | Round et al. | May 1935 | |
3201529 | Surh | Aug 1965 | |
3711659 | Bremseth | Jan 1973 | |
3919498 | Beer | Nov 1975 | |
4239943 | Czerwinski | Dec 1980 | |
4387275 | Shimada | Jun 1983 | |
4430529 | Nakagawa et al. | Feb 1984 | |
4817165 | Amalaha | Mar 1989 | |
4821330 | Pfleiderer | Apr 1989 |
Number | Date | Country |
---|---|---|
0844211 | Jul 1939 | FRX |
0886492 | Jan 1962 | GBX |
Entry |
---|
PCT/US88/00685--Oct. 20, 1988--House. |
PCT/US89/02374--Apr. 19, 1990--House. |