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Ships within 48 hours · Estimated delivery Aug 31 - Sep 5
Reserve from the case
Ships within 48 hours · Estimated delivery Aug 31 - Sep 5
5" W x 18" D x 27
25" W x 29" H
but will be included inside
1900-1920s
1930s Duro Metal Products Patent Litigation Archive whist 5" W x 18" Dc. 1920s 1950s; Duro Metal Products Company Chicago, IL Extensive archive of patent related materials centered around mechanical locking and tool adjacent innovations, including diagrams, typed legal correspondence, engineering drawings, and original patent documentation. The group appears to document Duro Metal Products' involvement in a dispute and or licensing negotiations surrounding inventions attributed to Johnson Lock Co., with particular
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