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Detachable-Blade-Connecting Device For Tools.
Patent for detachable blade connecting device for tools, the importance of which lies in the fact that this tool provides "simple and efficient means for detachably supporting interchangeable blades which may be quickly removed and replaced" (lines 16-19).
Date:
July 28, 1914
Creator:
Grimes, John Willis
System:
The Portal to Texas History