C & D
Filed: October 28, 1930
HOT TOP LININGS OF BRICK OR SIMILAR HEAT INSULATING MATERIAL
Owned by: FERRO ENGINEERING COMPANY, THE
Serial Number: 71307272
C & D
Filed: November 17, 1930
HOT TOP CASINGS FOR USE ON INGOT MOLDS
Owned by: FERRO ENGINEERING COMPANY, THE
Serial Number: 71307970
C & D
Filed: January 29, 1931
PARTING COMPOUND-THAT IS TO SAY, A COATING APPLIED TO CERTAIN HOT TOP SURFACES TO ASSIST PARTING WHEN THE HOT TOP IS STRIPPED…
Owned by: FERRO ENGINEERING COMPANY, THE
Serial Number: 71310511
REDI-MIX
Filed: December 26, 1947
HOT TOP COMPOUND, THAT IS TO SAY A COMPOUND FOR USE AS A MORTAR FOR PATCHING AND SEALING JOINTS IN A HOT TOP LINING AND…
Owned by: FERRO ENGINEERING COMPANY, THE
Serial Number: 71545466
C AND D
Filed: June 19, 1953
ANNULAR MOLDED ARTICLE KNOWN AS A BOTTOM RING USED IN CONNECTION WITH CERTAIN TYPES OF HOT TOPS WHICH ARE USED WITH INGOT…
Owned by: FERRO ENGINEERING COMPANY, THE and FERRO ENGINEERING COMPANY, THE
Serial Number: 71649085
