Patent Office, Washington, D.C. - examiners at work
Summary
Wood engraving after sketch by Theodore H. Davs.
Illus. in: Harper's Weekly, v. 13 (1869), p. 445.
Reference copy may be in LOT 4386-H.
This record contains unverified, old data from caption card.
Caption card tracings: Artists, Publ. I.; Inventions Patents; DC, Wash. Bldgs., US Govt.; Civil Service; Shelf.
Tags
Date
01/01/1869
Source
Library of Congress
Copyright info
No known restrictions on publication.