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ספרים בחינם

Mechanical Drawing Self-Taught Comprising instructions in the selection and preparation of drawing instruments, elementary instruction in practical mechanical drawing; together with examples in simple geometry and elementary mechanism, including screw threads, gear wheels, mechanical motions, engines and boilers

Joshua Rose · 2007

ספרייה ציבורית, Project Gutenberg. בלי הרשמה.

Mechanical drawingDrawing instruments

עוד של Joshua Rose