Counties
2 Matching Results
Results open in a new window/tab.
Results:
1 - 2 of
2
Weed-Cutting Machine.
Patent for a weed cutting plow implement with height-adjustable runners.
Date:
October 30, 1917
Creator:
Schubert, William A.
System:
The Portal to Texas History
Blackboard-Cleaner.
Patent for a blackboard cleaner that incorporates a "water reservoir having manually controlled means for communicating the water of the reservoir to the rubbing element of the cleaner" (lines 13-17) including an illustration. The rubbing element was also made to be easily removed for replacement or cleaning.
Date:
January 29, 1918
Creator:
Satrum, Gilbert G. & Snartemo, Ingvald B.
System:
The Portal to Texas History