![](http://www.alamy.com/thumbs/6/44C95931-7021-43D4-BD13-D3BB4C886CAD/2F61BEB.jpg)
Herman Frasch, German Chemist and Inventor
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Keywords: 1910s, 20th, bw, century, chemist, collection, engineer, famous, frasch, german, haynes, herman, hermann, history, inventor, mining, personality, photo, portrait, process, williams