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Mechanical drawing problems for high schools, normal schools and vocational schools (1918)
Berg, Edward. [from old catalog], Kronquist, Emil F. (Emil Fritjoff), b. 1882 · Peoria, Ill. : The Manual arts press · leaf 209
PAPER PUNCH eCAUEl DATE 206 h «-i •^yo i >-^ ^Drill) … 7 /6T*- -^i 3^ -t-M- If ■r-r \ ^ K ^^■-Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
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