Pattern making; a practical treatise for the pattern maker on wood-working and wood turning, tools and equipment, construction of simple and complicated patterns, modern molding machines and molding practice (1921)
Ritchey, James, Monroe, Walter W. (Walter William), b. 1869 · Chicago, American technical society · leaf 151
Fig. 241. Valve Stem i^ut Nut for valve Fig. 242. Details of Valve and Valve Nut
Patternmaking
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
