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Building Construction
Patent for metal beams used in building construction that have perforated plates to allow the passage of concrete through the plate when the metal piece is embedded in concrete thus strengthening the attachment of the metal and the concrete.
Date:
May 14, 1907
Creator:
Keyser, William H.
Object Type:
Patent
System:
The Portal to Texas History
P.L. 94-171 County Block Map (2010 Census): Navarro County, Index
Index map for Navarro County, Texas showing the distribution of census blocks and smaller inset areas for which the U.S. Census Bureau collected data. The plotted map scale is 1:121,797.
Date:
December 14, 2010
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History
Tag-Fastener
Patent for "improvements in tag-fasteners...which can be applied to [a] package with great rapidity and which will not easily become detached" (lines 6-19) including illustrations.
Date:
July 14, 1914
Creator:
Walshe, Denny Edmund
Object Type:
Patent
System:
The Portal to Texas History
Evaporating-Pan.
Patent for a evaporating pan for use in making syrup from green juices that helps strain impurities out of the juice and boil it down by having a variety of compartments that the juice flows through throughout the pan.
Date:
May 14, 1907
Creator:
Chamblee, Wilson G.
Object Type:
Patent
System:
The Portal to Texas History