Counties
2 Matching Results
Results open in a new window/tab.
Results:
1 - 2 of
2
Boll-Weevil Machine.
Patent for a pneumatic device to remove and crush boll weevils and their associated bolls on cotton plants, in the ground around cotton plants, and in the air.
Date:
October 16, 1917
Creator:
Jones, Henry A. & Harrell, Billington C.
System:
The Portal to Texas History
Retaining Ring.
Patent for "a new and useful Retaining-Ring" (lines 5-6), including illustrations.
Date:
March 13, 1917
Creator:
Hornburg, Charles A.
System:
The Portal to Texas History