000 00290nam a2200121Ia 4500
008 160710s1946 xx 000 0 und d
082 _a621.3 L26E
100 _aLANGMAN,H.R.
245 _aELECTRICAL HOROLOGY
260 _bTHE TECHNICAL PRESS LTD.
_c1946
300 _a200
942 _2ddc
_cB
999 _c10506
_d10506