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Saw Tooth.

Description: Patent for a new and improved saw tooth. This design "relates to saws having attachable and detachable teeth held to their places by locking plates or keys inserted, like the teeth, within recesses in the saw-plate; and it consists in a novel construction of the parts, also in combining with the same a spring-bolt, whereby each tooth and its locking key are securely held in position, with facility for detachment when required, and whereby, also, any drawing action, in cutting of the wood on the… more
Date: July 29, 1884
Creator: Conover, Philip V.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Calipers.

Description: Patent for calipers that can be adjusted micrometrically to within one five-thousandth of an inch. Includes instructions and illustrations.
Date: June 29, 1897
Creator: Clarke, George R.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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