TY - BOOK AU - Beck,A.H. TI - Handbook of vacuum physics U1 - 621.55 PY - 1964/// CY - Oxford PB - Pergamon Press KW - Vacuum technology KW - Vacuum-tubes KW - Vacuum pumps KW - Vacuum filters KW - Vacuum N1 - Library has Vol. 1-3; Vol. 1. Gases and vacua, 1964 -v. 2. Physical electronics -v. 3. Technology, pt. 1-3, 1964 -v. 3, pt. 4, 1964 ER -