Window-Sash Lock.
Description:
Patent for a device which may be attached to the upper and lower sashes of a window to firmly lock them in position. The device is special because "the attachment to the upper sash does not project into the path of the lower sash nor interfere with its operation" (lines 16-19).
Date:
June 8, 1915
Creator:
Merrell, Frederick R.
Item Type:
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Partner:
UNT Libraries Government Documents Department