Resource Type
Counties
2 Matching Results
Results open in a new window/tab.
Results:
1 - 2 of
2
Improvement in the Propulsion of Vessels.
Patent for improvement in vibrating propellers with continued paddle action that can be attached to a line of boats.
Date:
December 30, 1873
Creator:
Macowitzky, Charles P.
System:
The Portal to Texas History
Improvement in Vibrating Propellers.
Patent for new and useful improvement in vibrating propellers.
Date:
December 22, 1874
Creator:
Macowitzky, Charles P.
System:
The Portal to Texas History