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in subjects: "Bolts and nuts."  
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Nut Lock

Description: Patent for a mechanism to lock a nut in place on a bolt that also automatically releases when a wrench is applied to turn the nut.
Date: August 4, 1914
Creator: Edwards, Whitfield H.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Securing Device

Description: Patent for pins or bolts having a head at one end and a pivoted locking bar at the opposite end adapted to be moved angularly in relation to the pin or bolt to prevent removal.
Date: August 15, 1916
Creator: Urban, William A. F.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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