BS 436 : Pt. 2 : 1970 : Specification for spur and helical gears : basic rack form, modules and accuracy
- London British Standards Institution 1970
- 27p.
STD 93
BS 436 : Pt. 2 : 1970
621.833 /
STD 93
BS 436 : Pt. 2 : 1970
621.833 /