Number | Name | Date | Kind |
---|---|---|---|
3291562 | Anderson | Dec 1966 | |
4277336 | Henschel | Jul 1981 |
Number | Date | Country |
---|---|---|
6007473 | Mar 1975 | AUX |
0422603A1 | Apr 1991 | EPX |
6-134479 | May 1994 | JPX |
6-154778 | Jun 1994 | JPX |
416523 | Jan 1967 | CHX |
Entry |
---|
Derwent Abstract: AN: 94-220628. |
Patent Abstracts of Japan, vol. 16, No. 265 (C-0951), 1992. |