Constellation Similarity Assertions
Winthrop Chemical Company (New York, N.Y.)
No biographical history available for this identity.
Maybe-Same Assertions
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Winthrop Chemical Company.
http://n2t.net/ark:/99166/w6vm9d8r (corporateBody)
NYC. From the description of Collection, ca.1900-1937. (College of Physicians of Philadelphia). WorldCat record id: 122440645 ...