Blaum v. National Barrow & Truck Co.

This is a bill in equity which is founded upon the alleged infringement of letters patent No. 849,(581, dated September 28, 1886, to William Benjamin, assignor to the plaintiff, for an imprpvement in metal wheelbarrows. The patented invention was an improvement upon a metallic wheelbarrow, the frame of which was composed of two tubular metallic handles or side-bars, and two cross-bars provided with eyes, which fitted upon the handles and were shrunk thereon. This device is shown in letters patent No. 21(5,584, dated August 30. .1881, to William C. Wren, assignor to Joseph Annin. Its method of…