000			00417pam a2200133a 44500
082			_aBTS _bMONO B-538
100			_aJones,W C
245	1		_aCONDENSER AND CARBON MICROPHONES.
260			_a _bElectrochemical Society, Washigton _c1931
300			_a17
500			_aBound Wtih Bts Mono-B-500-537,539.Lack Of-B-501-502,504,506,509,518,521,522,524,526,528,530,531,533,535-536
964			_gCIRC
997			_aTR16512 C
999			_c397862 _d397862