Number | Date | Country | Kind |
---|---|---|---|
1-34826 | Feb 1989 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4913929 | Moslehi | Apr 1990 |
Number | Date | Country |
---|---|---|
0299244 | Jun 1988 | EPX |
Entry |
---|
G. Lewin, Fundamentals of Vacuum Science and Technology, 1965, pp. 2-10. |
P. A. Redman, J. P. Hobson and E. V. Kornelsen, The Physical Basis of Ultrahigh Vacuum, 1968, pp. 18-23. |