2007-01-032022-02-032007-01-032022-02-03https://hdl.handle.net/11124/6746Date scanned: 2002-06-28.Held in the Russell L. and Lyn Wood Mining History Archive, Arthur Lakes Library, Colorado School of Mines.Donor: United States Bureau of Mines.Copy of legal document. Figures 1 & 2. Certified to be the drawings referred to in the specification here unto anneued. Inventor Joseph Klansnic. By Henry L. Reynolds, Attorney. Witnesses Everette Townsend and ?. Seattle, Wash.Rights management statement available at: http://library.mines.edu/digital/rights.htmlMine rescue workMiningUnderground miningVehiclesStillImage