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Door Check.
Patent for a new and improved door check. This design "consists in a disk pivoted on a plate and provided with a notch for receiving the corner of the door, and with a series of teeth with which a pawl engages for locking the disk in place after it has been adjusted" (lines 11-15).
Date:
April 14, 1885
Creator:
Callaway, James William
System:
The Portal to Texas History