Follow-Up on Early Warner Bros. LP Pressings (pre-1960)

As previously discussed on this thread which has since been closed . . .
http://www.stevehoffman.tv/forums/showthread.php?p=1821001
. . . it turns out that G.B. patent number 713,418, as on this stamped message on the deadwax of 1958-c.'60 West Coast-pressed Warner Bros. LP's . . .

. . . originated from the same individual, Allan R. Ellsworth, as U.S. patent number 2,631,859 / Re. 23,946, and was issued in Britain on Aug. 11, 1954. I stumbled across a link here which actually describes in great detail this U.K. patent. And as I suspected, both U.S. and British patents dealt with exactly the same method of pressing LP's (raised edges and label areas, among others).