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Anonymous
Anonymous
Hercules Incorporated (American, 20th Century)
Hercules Incorporated (American, 20th Century)
Hercules Incorporated (American, 20th Century)
Dow Chemical Company (American, 19th/20th Century)
Dow Chemical Company (American, 19th/20th Century)
Anonymous
Anonymous
Dow Chemical Company (American, 19th/20th Century)
Dow Chemical Company (American, 19th/20th Century)
Dow Chemical Company (American, 19th/20th Century)
Anonymous
Jon Whitcomb (American, 1906–1988)