Harrisburg Foundry & Machine Works - 1874 article - Parallel machinist's vise

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Harrisburg Foundry & Machine Works
Harrisburg, PA

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Title:	1874 article - Parallel machinist's vise
Source:	March 1874 Manufacturer & Builder
Insert Date:	7/7/2017 9:01:42 AM

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This article refers to the "Cumming patent arrangement". They are referring to DeWitt Clinton Cumings' patent 89,130, for a parallel-jaw leg vise. See the patent tab for details.

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