Certification Mark Trademarks Filed in December 16, 1975
NB
Filed: December 16, 1975
SAFETY VALVES AND SAFETY RELIEF VALVES
Owned by: NATIONAL BOARD OF BOILER AND PRESSURE VESSEL INSPECTORS
Serial Number: 73071980
NAT'L BD.
Filed: December 16, 1975
BOILERS AND PRESSURE VESSELS
Owned by: NATIONAL BOARD OF BOILER AND PRESSURE VESSEL INSPECTORS
Serial Number: 73071981
NATIONAL BOARD
Filed: December 16, 1975
BOILERS AND PRESSURE VESSELS
Owned by: NATIONAL BOARD OF BOILER AND PRESSURE VESSEL INSPECTORS
Serial Number: 73071983
