John H. Diers, of Blakeley, and Oscar Arnson, of St. Paul, Minnesota, assignors to Liberty Power Saw Company, county of Ramsey, Minnesota, a corporation of Minnesota claim to have invented certain and useful improvements on portable power saws. Appication files February 15, 1919. Serial No. 277, 237.
The invention is to provide an efficient portable, self contained saw mill, adapted for use, first to saw down the standing tree and then to saw up the tree trunks into logs of the desired length.
Patent awarded June 6, 1922. Serial No. 1,419,028.