Carpenter's Square.
Description:
Patent for a new and improved carpenter's square. This design calls for ribs or ridges running lengthwise along the blades and a thicker, more durable square between the blades. In this way, only the ribs or ridges suffer wear, and the square lasts longer.
Date:
October 3, 1882
Creator:
Callihan, Willie Hoyle
Item Type:
Refine your search to only
Patent
Partner:
UNT Libraries Government Documents Department