00372nam a22001217a 4500008004100000020001500041050002000056100001800076245008000094260004200174300001000216650002400226160803b        xxu||||| |||| 00| 0 eng d  a0340192666  aT 353 .O73 1971  aOrd,H.d1974.  aEngineering drawing and materials:bfor mechanical engineering technicians.  aLondon:bHodder and Stoughton,c1974.  a131p.  2 Mechanical drawing