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3 Matching Results
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Automatic Train-Stop.
Patent for mechanism to automatically sound alarm and shut off steam when a train passes a danger point.
Date:
December 21, 1915
Creator:
Bulla, Melbern Bernie
System:
The Portal to Texas History
Tier.
Patent for a retractable and reusable package tie device for packages.
Date:
December 21, 1915
Creator:
Clary, Irvin W.
System:
The Portal to Texas History
Drill-Bit-Retaining Device
Patent for a new and improved “drill bit retaining devices for drills of the hammer type”(lines 12-13), including an illustration.
Date:
December 14, 1915
Creator:
Weiner, Rudolph S.
System:
The Portal to Texas History