![](http://www.alamy.com/thumbs/6/4BD9836B-42AF-417C-A685-94EBDE085A12/2MPBBHG.jpg)
Typical Patent Office Drawing from the book ' Mechanical drafting ' by Henry Willard Miller, Illinois University. Dept. of general engineering drawing Publication date 1917 Publisher Peoria, Ill. : The Manual arts press
Size: 1820px × 2734px
Location: UK
Photo credit: © Historic Illustrations / Alamy / Afripics
License: Royalty Free
Model Released: No
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