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US Patent: RE5,222
Improvement in boring-machines
Niram R. Merchant - Guilford, NY

USPTO Classifications:

Tool Categories:
trade specific : cooper
woodworking machines : specialty machines : barrel making machines

Andrew P. Merchant - Guilford, NY
Niram R. Merchant - Guilford, NY

N. Mack & Co. - Rochester, NY
Guilford Iron Works - Guilford, NY
A. P. Merchant - Guilford, NY

Helen M. Merchant
Thomas Dickinson

Patent Dates:
Granted: Jan. 07, 1873

Reissue Information:
Reissue of 32,449 (May 28, 1861)

Patent Pictures:
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"Vintage Machinery" entry for Guilford Iron Works
The inventor had died in 1863. "The object of this invention is to obtain a simple and efficient machine for simultaneously boring two holes at different distances apart for dowels, designed chiefly for the use of coopers for boring the pieces of cask-heads which are connected by dowels."

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