Last name of Roy, who developed a whirlpool bath that included his patented hydromassage system in 1968
[DOC] [TLE] Patent US3385445 - Suction strainer and detergent container for ... [PAR] 2 Shets-Sheet 1 M y 1968 P. BUCHEGGER T A SUCTION STRAINER AND ... for 
a circulating liquid metalcleaning and degreasing system which comprises a .... 
12 Dec 2006, Mattson Jr Roy W, Hydromassage antimicrobial whirlpool bathtub.