Max Schwendner from Reading PA was issued 2 consecutive patent numbers on September 3, 1907, Patents 864,805 and 864,806. Both wrench designs were produced. Patent 864,805 was for a wedge adjusted nut wrench, patent 864,806 was for a quick adjust wrench design that could be made in either a nut wrench or a pipe wrench. All 3 styles are pictured. The pipe wrench version is easily recognized by the ax handle design of the wrench.