Landmarks of Human Thought I - Catalog - Page 27
ANDERSON Mary: Window
Cleaning Device. Patent No.
743,801.
Application filed June 18, 1903;
patented November 10, 1903.
Washington D.C.: Norris Peters
Photo-Lithographer for the United
States Patent Office [1903].
Folio (274 x 173 mm) 2 pp. [1r] –
[1v] text, double column, one leaf of
diagrams printed on verso only.