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Improvement in Permutation Locks.
Patent for improvements to permutation locks by various means.
Date:
September 27, 1870
Creator:
Hall, William
System:
The Portal to Texas History
Thill-Coupling.
Patent for a new and useful thill coupling for "locking the thill-iron to the attached thill in a raised position" (line 8 -9).
Date:
September 27, 1898
Creator:
James, Will S.
System:
The Portal to Texas History