Resource Type
Counties
3 Matching Results
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Improvement in Permutation-Locks
Patent for an improvement in permutation locks.
Date:
March 10, 1874
Creator:
Hall, Phidello W.
System:
The Portal to Texas History
Improvement in Car-Couplings.
Patent for an improved train car-coupling, including illustrations.
Date:
March 30, 1875
Creator:
Garrett, Charles C.
System:
The Portal to Texas History
Improvement in Watchmakers' Lathes.
Patent for the improvement of watchmakers' lathes by way of an adjustable bed.
Date:
March 13, 1876
Creator:
Williams, Daniel M.
System:
The Portal to Texas History