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CONCRETE-BLOCK MACHINE

Description: Patent for "improvements in means for improving cement or concrete blocks."(ln. 12-14)
Date: February 10, 1914
Creator: Cathriner, Joseph
Partner: UNT Libraries Government Documents Department

Air-Blast Cotton-Gin

Description: Patent for airing out the lent from the brushes on the ginn. This also uses less power than the ones before.
Date: November 21, 1914
Creator: Ginn, C.B.
Partner: UNT Libraries Government Documents Department
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