You limited your search to:

  Partner: UNT Libraries Government Documents Department
 County: Galveston County, TX
 Decade: 1840-1849
Boring and Mortising Machine.

Boring and Mortising Machine.

Date: July 11, 1848
Creator: Swingle, Alfred
Description: Patent for a machine to bore square holes in substitute for a chisel and reduce labor, including illustration. The inventor calls it a "Mortise and Tenon Machine."
Contributing Partner: UNT Libraries Government Documents Department