Developed in Reno, NV by a John F. Petritsch...a wire-frame luger stock, US Patent # 1477445 filed in 1923 :
http://v3.espacenet.com/pdfdoc?DB=EP...&QPN=US1477445
Another one developed in Montana State in 1912 :
http://v3.espacenet.com/pdfdoc?DB=EPODOC&IDX=US1016695