00309nam a22001097a 4500082002900000100001900029245003900048260004200087300002500129526003700154650000800191  a744.422bKENcL-12, P-26  aKenison, Ervin  aMechanical DrawingcKenison, Ervin  aUSAbAmerican Technical Societyc1944  a330 p.bill.c22 cm.  a0b0c0d604_200000000000000_KEN  aMCE