Counties
1 Matching Results
Results open in a new window/tab.
Results:
1 - 1 of
1
Matrix-Molding Device
Patent for improvements to matrix-molding devices, "and the object is to provide simple devices which are carried by the matrices or molding devices for forming rule retaining members which have angular grooves" (lines 14-17).
Date:
September 12, 1913
Creator:
Markwell, Andrew E.
System:
The Portal to Texas History