Number | Date | Country | Kind |
---|---|---|---|
3930372 | Sep 1989 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3570832 | Ortheil | Mar 1971 | |
4516440 | Nishikawa | May 1985 | |
4662616 | Hennells | May 1987 | |
4785921 | Hosan et al. | Nov 1988 |
Number | Date | Country |
---|---|---|
317791 | Oct 1988 | EPX |
2417543 | Oct 1975 | DEX |
264894 | May 1989 | DEX |
3740669 | Jun 1989 | DEX |
3902882 | Aug 1990 | DEX |
381005 | Dec 1907 | FRX |
Entry |
---|
Soviet Inventions Illustrated, week 84/09, section P,Q: General/Mechanical, Abstract No. 84-055112/09, Derwent Publications Ltd., London, GB; & SU-A-1015 154 (Forge Press Equip.) 30-04-1983 (Abstract; figure). |