Wellman, B. Leighton 4 0 1908-

Technical descriptive geometry. 6 6 - 2nd ed. - - 628 p. illus. 24 cm. - - - - - . - . - 0 . - . - 0 .







5

















5







2 = =







56008872

2




2 --0------


6 --0-- 2 --------



0 2 --


--20------





Geometry, Descriptive. --------20--


--------20--


----2

QA501 / .W4 19572

/ 2

/

/