3 Matching Results
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Improvement in Sad-Iron Heaters.
Patent for improvements to sad-iron heaters, including illustrations.
Date:
September 7, 1875
Creator:
Cottingham, Gideon Wesley
System:
The Portal to Texas History
Improvement in Processes of Coloring Enameled Photographs.
Patent for improving the coloring process of enameled photographs by using collodio-gelatine instead of warm gelatine.
Date:
September 7, 1875
Creator:
Williams, William W.
System:
The Portal to Texas History
Improvement in Churn-Dashers.
Patent for "construction and arrangement of a churn-dasher..." ( lines 13-14) including instructions and illustrations.
Date:
September 7, 1875
Creator:
Bright, John, D.
System:
The Portal to Texas History