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Ointment.
Patent for a general external application ointment made of chloride of zinc, powdered metallic cobalt, blood root, and glycerine.
Date:
April 4, 1922
Creator:
Mullins, Ervin L. & Collier, William R.
System:
The Portal to Texas History
Wrench
Patent for wrench improvement. Allows for "instantaneous initial or preliminary adjustment to fit any size object within its capacity, and a final adjustment to engage the object firmly and securely and to provide a simple, practical, and efficient wrench of strong and durable construction, and equipped with ratchet mechanism for affording a quick adjustment of a sliding jaw and a threaded connection . . . " (13-21)
Date:
January 4, 1916
Creator:
Cunningham, Ira
System:
The Portal to Texas History
Design for a Railroad-Brace.
Design patent for a railroad brace that has an essential feature of possessing peculiar shape and configuration.
Date:
October 4, 1898
Creator:
Cater, Daniel
System:
The Portal to Texas History