Landmarks of Human Thought I - Catalog - Page 37
COLTON Frank B.: Estradiene
Compounds. Patent No. 2,691,028.
Application filed May 25, 1953;
patented October 05, 1954.
Washington D.C.: United States
Patent Office [1954].
Folio (276 x 188 mm) 1 p. [1r] –
[1v] text, double column.