Feb. 4: Corporate Council SKH
From Bill Goodwine's Wiki
Relevant Patents
Glencoe/Rolf patent 2739518 (Issued in 1956, however, the device was marketed in May 1951, before Graham's '798 patent was filed)
Glencoe/Rolf patent 2739518 (Issued in 1956, however, the device was marketed in May 1951, before Graham's '798 patent was filed)