00649nam a2200205 a 4500 71958 BD-RjUL 20211209082207.0 170511s1951 enka 000 0 eng d (BD-RjUL)72174 NLM NLM EQO BD-RjUL eng eng 23 621.381542 CAT 1951 Cathode-ray tubes and their associated circuits / United States. Department of the Army Washington : United States G.P.O, c1951 218 p. : ill. ; 28 cm. Cathode ray tubes 212828 United States. Department of the Air Force. 212829 ddc BK 71958 71958 0 0 ddc 0 1 NFIC RUCL RUCL Reading 1970-10-13 Zeitlinger 121.00 0 621.381542 CAT 1951 2017-05-11 00:00:00 C-1 2017-05-11 BK 0 0 ddc 0 1 NFIC RUCL RUCL Reading 1970-10-13 Zeitlinger 121.00 0 621.381542 CAT 1951 2017-05-11 00:00:00 C-2 2017-05-11 BK