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Manufactured By:
R. M. Clough
Meriden, CT; Tolland, CT

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Title: 1897 Ad - R. M. Clough, Tolland. Duplex Gear Cutter
Source: American Machinist, V20 ,16 Dec., 1897, pg. 10
Insert Date: 1/15/2023 4:09:36 PM

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US Patent: 490,638

http://datamp.org/patents/displayPatent.php?number=490638&typeCode=0
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1897 R. M. Clough, Duplex Gear Cutter
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