
- RE29567 - Method of Refining Steel (1978)
- 3904399 - Method for Refining Pig Iron Into Steel (1975)
- 3897256 - Refactory Lining Mixture for Hot Metallurgical Vessels (1975)
- 3897244 - Method for Refining Iron-base Metal (1975)
- 3881917 - Method of Refining Steel (1975)
- 3373910 - Stopper Rod with Temperature Cooling Means (1968)
- 3281904 - Stopper For a Ladle or Similar Receptacle (1966)
- 3194192 - Furnace Door (1965)
- 3183564 - Stopper For a Ladle or Similar Receptacle (1965)
- 3091823 - Stopper For a Ladle or Similar Receptacle (1963)
- 3044132 - Stopper For a Ladle or Similar Receptacle (1962)
