A textbook on mechanical and electrical engineering (1902)
International Correspondence Schools · Scranton : International Textbook Co. · leaf 238
t?V^ -r. %-.--mm … N/S63 ediately following the title page. J-0^f7\rjMITH.CZA;5SJi945Z9. § 14 MECHANICAL DRAWING 75 without further verbal or written instructions. The cases inwhich this usually happens are where coring has various odd-shaped curved surfaces that curve in different directions, asoccurs, for instance,…
