Resource Type
States
Counties
5 Matching Results
Results open in a new window/tab.
Results:
1 - 5 of
5
Apparatus for Transmitting Sound-Waves
Patent for transmitting sound waves by magnetic induction and to "furnish an apparatus by which these different vibrations can be heard at the receiving end" (lines 20-22). Includes descriptions and illustrations.
Date:
October 17, 1911
Creator:
Harvey, Fred Brown
System:
The Portal to Texas History
Coach-Equalizing Suspender.
Patent for a coach-equalizing suspender.
Date:
March 4, 1902
Creator:
Best, William Newton
System:
The Portal to Texas History
Rotary Drill
Patent for Rotary Drill
Date:
August 22, 1916
Creator:
Grinffin, Thomas. J
System:
The Portal to Texas History
Rotary Drill
Patent for Rotary Drill
Date:
August 22, 1916
Creator:
Griffin, Thomas J.
System:
The Portal to Texas History
Oil Burner
Patent for an oil burner
Date:
April 15, 1913
Creator:
Casad, Roland C.
System:
The Portal to Texas History