Ravelli Santo E.
Ravenscroft Jack
Ray P. Vastine
Raymond B. Chase
Raymond C. Oswald
Raymond Guyomarc'h
Raymond J. Demaison
Raymond L. Cavanagh
Raymond J. Lamb
Reaktor-Brennelement Union G.m.b.h.
Reali Silvio
Reding John N.
Redl Gerhard
Reed Elmer E.
Reed Roger D.
Reese Thurston F.
Refractory Products Co.
Refractory Specialties Company
Regelin Donald H.
Rego Salvador