00677nam a2200241 a 4500 13723 BD-RjUL 20211208235513.0 140201s1952 nyu 001 0 eng d (BD-RjUL)13775 NUN eng NUN BD-RjUL eng 621.38151 20 HEE 1952 Henney, Keith. 42936 Electron tubes in industry / by K.Henney and J.D.Fahnestock. 3rd ed. New York : McGraw-Hill, c1952. x, 353 p. : ill. ; 24 cm. Includes index. Electron tubes. 42827 Fahnestock, James D. 42937 ddc BK 13723 13723 0 0 ddc 0 1 NFIC RUCL RUCL Reading 1967-03-04 Book Centre. 45.00 0 621.38151 HEE 1952 2014-02-01 00:00:00 C-1 2014-02-01 BK