3 Matching Results
Results open in a new window/tab.
Results:
1 - 3 of
3
Nut-Lock.
Patent for a nut lock that is easy to manufacture.
Date:
January 3, 1911
Creator:
Dowell, Lawson H.
System:
The Portal to Texas History
Nut-Lock.
Patent for a nut lock that keeps bolts attached extra tightly.
Date:
January 31, 1911
Creator:
Greer, Benjamin J.
System:
The Portal to Texas History
Harrow.
Patent for a harrow for use in orchards that can be moved around easily to avoid trees.
Date:
June 20, 1911
Creator:
Forkner, Charles E.
System:
The Portal to Texas History