000			00471nam a22001697a 4500
999			_c1464 _d1464
008			200124b ||||| |||| 00| 0 eng d
082	0	0	_a621.834 _bC7272
100			_9251 _aColvin, Fred H.
245	1	0	_aGear cutting practice; methods of producing gears for commercial use _cby Fred H Colvin
250			_a3rd
260			_aNew York _bMcGraw-Hill _c1950
300			_axii,532p.
365			_d29.04
650		0	_aGearing
700			_9253 _aStanley, Frank A.
942			_cBK