3 Matching Results

Search Results

Advanced search parameters have been applied.

Pipe-Tongs.

Description: Patent for "a new and useful improvement in pipe-tongs" (lines 5-6) including illustrations and instructions.
Date: July 21, 1914
Creator: Meredith, John De Witt
Partner: UNT Libraries Government Documents Department

Boring and Threading Tool.

Description: Patent for an inexpensive, efficient boring and threading tool that "will enable a smooth and even surface to be produced with a minimum of skill on the part of the operator" (lines 18-21).
Date: June 21, 1921
Creator: Wells, Daniel Doolittle
Partner: UNT Libraries Government Documents Department
Back to Top of Screen