000 00364pam a2200145a 44500
082 _aBTS
_bMONO 1849
100 _aMason,W P
245 1 _aAN ULTRASONIC BARIUM TITANATE TRANSDUCER
260 _a
_b
_c1950
300 _a6
500 _aBound With Bts Mono 1831-1848,1850-1858 Lack No- 1850,1856
700 _aWick,R F
964 _gCIRC
997 _aTR19647 C
999 _c403335
_d403335