000			00533nam a2200181Ia 4500
008			250412b |||||||| |||| 00| 0 eng d
082			_a621.3857 WIL
100			_aWilman, Charles W.
245			_aAutomatic telephony /
250			_a2nd ed.
260			_aLondon : _bTechnical Press, _c1938.
300			_avi, 208 p. : _bill. ; _c20 cm.
500			_aIncludes index.
650			_aTelecommunication engineering
650			_aTelephone switching systems
650			_aTelephone technology
942			_2ddc _cC
999			_c116320 _d116320