13 Matching Results

This system will be undergoing maintenance May 23rd between 9:00AM and 12:00PM CDT.

Search Results

Advanced search parameters have been applied.

Valve-Grinder.

Description: Patent for a valve grinder that fit together perfectly to prevent leakage and a consequent loss of power.
Date: May 16, 1916
Creator: Atkin, Frank R.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen