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Controlling System for Motor Traction-Cars
Patent for a controlling system for motor traction cars which is automatic.
Date:
November 1, 1910
Creator:
Mayo, William C.
System:
The Portal to Texas History
Cleaning Apparatus.
Patent for a cleaning apparatus, which cleans objects by blasting air across them and has an air cleaning system for use after the cleaning is done.
Date:
June 1, 1909
Creator:
Mayo, William C. & Houlehan, John
System:
The Portal to Texas History