Number | Date | Country | Kind |
---|---|---|---|
84 08500 | May 1984 | FRX |
Number | Name | Date | Kind |
---|---|---|---|
1639575 | Robinson | Aug 1927 | |
2708250 | Day | May 1955 | |
3335310 | Ney | Aug 1967 | |
3419741 | Legendre | Dec 1968 | |
3603759 | Peacock | Sep 1971 | |
3878417 | Eberlein | Apr 1975 | |
4045699 | Gunther | Aug 1977 | |
4119234 | Kotschak et al. | Oct 1978 | |
4122967 | Rohrich | Oct 1978 | |
4238043 | Minami et al. | Dec 1980 | |
4331898 | Shimizu et al. | May 1982 | |
4422008 | Aramaki et al. | Dec 1983 | |
4423351 | Sugimori et al. | Dec 1983 |
Number | Date | Country |
---|---|---|
23051 | Jan 1981 | EPX |
1579461 | Jul 1969 | FRX |
2305850 | Oct 1976 | FRX |
Entry |
---|
Welding Production, vol. 25, No. 9, Septembre 1978, pp. 19-20, Cambridge, GB; K. K. Khrenov et al.: "The Formation . . . ". |
Patents Abstracts of Japan, vol. 6, No. 55 (E-101) [933], 10 Avril 1982; & JP-A-56 167 246 (Tokyo Shibaura Denki K.K.) 22-12-1981. |