2 Matching Results

Search Results

Results: 1 - 2

Well Drilling Machine.

Description: Patent for an improvement in well drilling.
Date: April 10, 1900
Creator: Wiedner, Friedrich R.
Partner: UNT Libraries Government Documents Department

Pyrometer.

Description: Patent for improvement in pyrometers for more accurate and reliable use in cooking stoves.
Date: December 25, 1900
Creator: Von Koehring, Henry
Partner: UNT Libraries Government Documents Department
Back to Top of Screen