Parkinson, A. C.
Intermediate Engineering Drawing - 5 - London ELBS 1966 - p.247
Conventions & Geometry Screw Threads Shaft Coupling Valves Toothed Gearing
744.422 P247I
Intermediate Engineering Drawing - 5 - London ELBS 1966 - p.247
Conventions & Geometry Screw Threads Shaft Coupling Valves Toothed Gearing
744.422 P247I