Number | Date | Country | Kind |
---|---|---|---|
53-98721 | Aug 1978 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
1798813 | Schoeller et al. | Mar 1931 | |
4054611 | Mimaki et al. | Oct 1977 | |
4131749 | Kiedik et al. | Dec 1978 |
Number | Date | Country |
---|---|---|
660173 | Mar 1963 | CAX |
905994 | Sep 1962 | GBX |
303314 | Jun 1971 | SUX |
Entry |
---|
Derwent Belgium Patent Report Belgian 593, 367, vol. 74A, Mar. 30, 1961, p. C11. |