Number | Date | Country | Kind |
---|---|---|---|
8623482 | Sep 1986 | GBX |
Number | Name | Date | Kind |
---|---|---|---|
3014787 | Peet | Dec 1961 | |
3388074 | Reitmeier | Jun 1968 | |
3965252 | Kmecak et al. | Jun 1976 | |
4113836 | O'Connor | Sep 1978 | |
4115074 | Yoshida et al. | Sep 1978 | |
4301035 | Risse | Nov 1981 | |
4690690 | Andrew et al. | Sep 1987 |
Number | Date | Country |
---|---|---|
194067 | Sep 1986 | EPX |
2168503 | Aug 1973 | FRX |
2187887 | Jan 1974 | FRX |
2336346 | Jul 1977 | FRX |
1424382 | Feb 1976 | GBX |
2019240 | Oct 1979 | GBX |
2053712 | Feb 1981 | GBX |
2086255 | May 1982 | GBX |
8103288 | Nov 1981 | WOX |
Entry |
---|
Patent Specification WO81/03288. |
EPO Search Report dated Dec. 7, 1987. |