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Manufactured By:
Griffitts Machine Works
San Francisco, CA

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Title: 1909 Ad-Griffitts Machine Works-Griffitts Belt Power Hammer
Source: American Blacksmith, V8, Jan 1909, pg. 60
Insert Date: 1/28/2020 10:37:58 PM

Image Description:
US Patent: 773,735

http://www.datamp.org/patents/displayPatent.php?number=773735&typeCode=0
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1909 Griffitts Machine Works-Griffitts Belt Power Hammer
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