Notes in engineering, 3a, Harvard university (1904)
Kennedy, F[rank] L[owell] [from old catalog], Norton, Arthur Edwin, [from old catalog] joint author · Cambridge, Mass. · leaf 40
I vo I wf< Pr-ob2 2^0 or» tanger^f - 2..0 art B.C. a: o .. - = a O .. Pr-ob.3 Q/on RC.-OJ on PC- etc. Note = Pitcfi Circle ((B(3)=Base Circie ((RcD = Roil.r^a Circle. ^d meQ»^s -4/oc»nes , ^heef 7 20 SHEKT C Orthtographiic Projections Illustration Sheet 27 SIIEET C - OETHOGRAPHIC PROJECTIONS…
Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
