Resource Type
Counties
2 Matching Results
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Ladder.
Patent for a ladder that will allow its prop legs to be slided longitudinally of the main ladder legs to form an extension ladder.
Date:
May 23, 1912
Creator:
Vierheller, Paul E.
System:
The Portal to Texas History
Improvement in Cultivators.
Patent for changes in the construction of a cultivator.
Date:
May 23, 1871
Creator:
Walker, Leander
System:
The Portal to Texas History