| Frank Ludwig. Essentials of Mechanical Drafting 1917.pdf | 27.68 MB |
Textbook in PDF format
Essentials of Mechanical Drafting; Elements, Principles, and Methods, With Specific Applications in Working Drawings of Furniture, Machine, and Sheet Metal Construction; a Manual for Students, Arranged for Reference and Study in Connection With Courses in Manual Training, Industrial, High, and Technical Schools
All Comments