Number | Name | Date | Kind |
---|---|---|---|
4148196 | French et al. | Apr 1979 | |
4285710 | Welch | Aug 1981 | |
4339927 | Sarcia | Jul 1982 |
Entry |
---|
"Update on Cryogenic Pumps", Semiconductor International, Oct., 1982, pp. 89-99. |
Advertisement from Airco Temescal, a division of Airco Inc., 2850 Seventh St., Berkeley, CA 94710 (5 pages). |