000			003200000a22001330004500
027			_aBS 235 : 1972
041			_aeng
942			_cSD
110			_aBRITISH STANDARDS INSTITUTION
245			_aBS 235 : 1972 : Gears for electric traction
260			_bBritish Standards Institution
300			_a25p.
500			_aSTD 57
999			_c25264 _d25264