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Apparatus for Recutting Files.
Patent for a new and improved file re-cutter. This design consists "[i]n an apparatus for recutting files by electro-chemical action, the dialectric plates and the carbon plates having their upper ends attached to said non-conducting plates, whereby the files to be recut are disposed between the carbon plates when in the solution" (lines 76-82).
Date:
April 5, 1887
Creator:
Emley, James E.
System:
The Portal to Texas History