000 00307nam a2200121Ia 4500
008 190711s9999 xx 000 0 und d
082 _a621.83 H838
100 _aHOUGHTON.P.S
245 0 _aGEARS SPUR HELICAL BEVEL AND WORM
260 _aLONDON
_bTECHNICAL PRESS
_c1961
300 _a25X16
942 _cBK
_2DDC
999 _c19160
_d19160