Description: Patent for a new and improved jack. This design "relates to devices for raising fence-corners in repairing the same, and for lifting weights generally; and the object of [the] invention is to produce a simple and powerful device whereby a single operator can greatly increase his [or her] capacity for lifting heavy objects" (lines 8-14).
Date: November 30, 1886
Creator: McNabb, James M.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department