Counties
2 Matching Results
Results open in a new window/tab.
Results:
1 - 2 of
2
Tool for Truing and Dressing Commutators.
Patent for a tool "for truing and dressing the commutators of dynamo motors... especially designed for truing and dressing the commutators of motors employed for propelling cars" (lines 9-14).
Date:
June 25, 1907
Creator:
Frick, Claus Henry
System:
The Portal to Texas History
Railroad-Rail
Patent for a new railroad rail design. Illustrations included.
Date:
June 25, 1907
Creator:
King, Alphonse
System:
The Portal to Texas History