Inside Out Library
Drafting room methods (1918)
Collins, Charles Dickey, 1872- [from old catalog] · New York, D. Van Nostrand company · leaf 84
Ciy … /u^^^^^^ Typical Patent Office Drawing 82 DRAFTING ROOIM METHODS (Ko Model.) „ . ^«..,„^ 2 Sheets-Sheet 3. W. A. COLLINS. DREDGINa BUCKET. No. 572,651. Patented Dec. 8, 1896.Drawing-room practice · Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
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