Harbison-Walker Refractories Company.
Stevens, R.
F. H. Norton
Gerald Routschka
Francis Thompson Havard
Unknown Author
J. D. Gilchrist
Harbison-Walker Refractories Company
General Refractories Company.
John Hugh Chesters
Fisher, Robert E.
Dana Goski
Sudhangshu Bose
A. O. Surendranathan
Alexander Humboldt Sexton
V.I. Matkovich
Bennett, James P.
Charles A. Schacht
Ritwik Sarkar
J. E. Pahlman