Serial/Series Title
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
Object Type:
Patent
System:
The Portal to Texas History
City Smoke Ordinances and Smoke Abatement
From Introduction: "In connection with the fuel investigations conducted by the Bureau of Mines much information has been accumulated as to the smoke abatement activities in various cities. The essential features of the information are presented in this report, which, it is believed, will be of public interest and benefit, especially to those communities that are just beginning organized effort to abate unnecessary smoke."
Date:
1912
Creator:
Flagg, Samuel B.
Object Type:
Report
System:
The UNT Digital Library
Rotary Drill
Patent for Rotary Drill
Date:
August 22, 1916
Creator:
Grinffin, Thomas. J
Object Type:
Patent
System:
The Portal to Texas History
Rotary Drill
Patent for Rotary Drill
Date:
August 22, 1916
Creator:
Griffin, Thomas J.
Object Type:
Patent
System:
The Portal to Texas History
Oil Burner
Patent for an oil burner
Date:
April 15, 1913
Creator:
Casad, Roland C.
Object Type:
Patent
System:
The Portal to Texas History