SUMP-VAC
Filed: June 9, 1945
MACHINES FOR CLEANING THE SUMP OF METAL WORKING MACHINES
Owned by: SPENCER TURBINE COMPANY, THE
Serial Number: 71484373
VACUSLOT
Filed: February 20, 1957
APPARATUS FOR USE IN VACUUM CLEANING SYSTEMS
Owned by: SPENCER TURBINE COMPANY, THE
Serial Number: 72024803
JET-CLEAN
Filed: July 1, 1976
TUBULAR BAG SEPARATORS FOR CLEANING AIR USED IN DUST COLLECTING, VACUUM CLEANING, AND PNEUMATIC TRANSPORT SYSTEMS, AND THE…
Owned by: SPENCER TURBINE COMPANY, THE
Serial Number: 73092272
CFM
Filed: April 30, 1984
ELECTRIC MOTOR DRIVEN FANS AND BLOWERS FOR INDUSTRIAL USE
Owned by: SPENCER TURBINE COMPANY, THE
Serial Number: 73477837
ENVIROTUFF
Filed: July 1, 1993
ventilating and exhausting fans
Owned by: SPENCER TURBINE COMPANY, THE
Serial Number: 74409788
VORTEX-VAC
Filed: December 18, 1995
self-cleaning central vacuum cleaning system composed of a blower, a vacuum separator having a self cleaning filter, and…
Owned by: SPENCER TURBINE COMPANY, THE
Serial Number: 75033563
