-JAWED PIPE-WRENCH A perfectly uniform grip on a pipe without marringor indenting the metal cannot be attained with everypipe-wrench. But in the device illustrated, the in-ventor, Mr. Christoffer Peterson, of Los Banos, Cal ,has provided the necessary means for securely grip-ping the pipe without… … THE PETERSON THREE-JAWED PIPE-WRENCH the jaws can readily grip large and small pipes. Thetwo main jaws are actuated by a slide in which a nutturns, having cut-out portions whereby it can be dis-engaged from the threads of the stock to permit thefree movement of the slide and nut on the stock.…