Filed: July 6, 1981Copper Impregnated Graphite for Machining PurposesOwned by: MWI, INC.Serial Number: 73317725
Filed: July 6, 1981Graphite for Machining PurposesOwned by: MWI, INC.Serial Number: 73317726
Filed: August 25, 1983Graphite for Machining PurposesOwned by: MWI, INC.Serial Number: 73440891
MANUALLY AND SOLAR OPERATED WATER PUMPING UNITS FOR RURAL WATER SUPPLYOwned by: MWI, INC.Serial Number: 75647301