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Improvement in Spike-Extractors. (open access)

Improvement in Spike-Extractors.

Patent for "an improvement in the class of nail-extractors in which a gripe or grapple formed of pendent springs or hinged jaws is employed." (lines 7-10) including instructions and illustrations.
Date: September 29, 1874
Creator: Devine, William
System: The Portal to Texas History