UNT Libraries Government Documents Department - 2 Matching Results

Search Results

Results: 1 - 2

Overshot Fishing-Tool

Description: Patent for improvements to overshot fishing tools, particularly for the use of removing, fishing out, "tools, parts of tools and other articles from" bored or drilled wells (lines 20-21). These improvements are designed to be manufactured cheaply.
Date: July 17, 1919
Creator: Kliewer, Edward A.
Item Type: Refine your search to only Patent

Switch-Locking Device.

Description: Patent for improvements in switch locking devices. Design intends to increase efficiency and ease of operability, as well as providing "means for retaining the latch in inoperative position" when chosen (lines 23-25).
Date: March 11, 1919
Creator: McCormick, William C.
Item Type: Refine your search to only Patent
Back to Top of Screen