A textbook on mechanical and electrical engineering (1902)
International Correspondence Schools · Scranton : International Textbook Co. · leaf 420
JUNE 25. /393. Copyright, 1899, by THE CcAll right … ERY Engineer Companv.served. JOHN SM/TH, CLASS N94529. 16 DEVELOPMENT OF SURFACES 31 Interedge lines are indicated by dash-and-double-dotlines. Represent developers by broken lines. Represent the stretchouts by heavy full lines. DRAWi:NrG JliATE, TITLE: DEVET.OPME)S^TS II PUOllLEM G 2^. To develop…