000 00604nam a2200193Ia 4500
919 _a023052
082 _a621.36606
_bN70
100 _aEngineering Seminar on New Ind
245 _aLaser technology
_bwelding, machining and saftey 15 papers presented at the engineering seminar on New industrial technology July 7-9 1969 at Penn State Univ.
260 _bEngg. Pub.
_c1970
999 _c21875
_d21875