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4 Matching Results
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Hot-Air Mixer
Patent for a device that will create hot air to be delivered to the manifold of gas-powered engines in motor vehicles when the operator pushes a plunger that will open an intake valve.
Date:
March 9, 1920
Creator:
Ingraham, Jerome H.
System:
The Portal to Texas History
Planting Attachment For Cultivators.
Patent for a new and improved planting attachment for cultivators, including instructions and illustrations.
Date:
March 13, 1900
Creator:
Nelson, Samuel W.
System:
The Portal to Texas History
Umbrella-Holder
Patent for an umbrella holder. Illustrations included.
Date:
March 19, 1912
Creator:
Rauch, Otto
System:
The Portal to Texas History
Alarm Device
Patent for an alarm device that is mounted on a house to warn of approaching wind storms.
Date:
March 28, 1911
Creator:
Stamps, William P. & Phillips, William R.
System:
The Portal to Texas History