National Research Company Trademarks
MBD
Applying protective industrial coatings to diamonds
Owned by: National Research Company
Serial Number: 78368703
MBC
coating of cubic boron nitride
Owned by: National Research Company
Serial Number: 78368715
MBDS
Applying protective silver coatings to industrial diamonds
Owned by: National Research Company
Serial Number: 78371109
MBCS
Applying protective industrial coatings of cubic boron nitride to silver
Owned by: National Research Company
Serial Number: 78371121
