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Practical problems in mechanical drawing and blueprint reading (1921)
Sturtevant, Walter W. [from old catalog] · Minneapolis, Minn. : Practical problems co. · leaf 9
TOR FRONT FND FFOA/T FA/P TOP V/EW r/^ONT V/EW \ ^R/CHT^END COA^\/^NT/OA/AL / INE5 ^ 1 1 I 1 1 1 1 /\ 1 BORDER L/NE y 1 A 1 OUTLZ/^e /1 //Vi//S/BLE L/A/E - CENTE/^ L/A/E /^/=fOjeCT/0r^ LINE \ ~~~- •^ \ \ \ 1 1 1 _Blueprints · Mechanical drawing
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