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[Photograph 2012.201.B1320.0032]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Republican Morris Udall, D-Arizona, is suffering from Parkinson's disease, he announced in Tucson. He said he is under drug treatment."
Date:
October 17, 1980
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Ore Concentrator
Patent for a "machine for separating ores of precious metals, and particularly to that class of machines known as 'dry concentrators or separators,' used for separating fold ore by means of an air-blast over dry sand, gravel, quartz, etc." (lines 10-15). Illustrations and instructions are included.
Date:
August 17, 1897
Creator:
Waer, Luis M.
Object Type:
Patent
System:
The Portal to Texas History