71587876
Nov 16, 1949
Nov 18, 1952
AIR STRAINERS, STRAINERS FOR OILS, STEAM, GASOLINE, GREASE EXTRACTION, AND COOLING WATER; DUPLEX STRAINERS FOR OILS, STEAM, GASOLINE, GREASE EXTRACTION, AND COOLING WATER; CONVERTIBLE STRAINERS; MARINE FUEL STRAINERS, AND STRAINER BASKETS OF VARIOUS MESHES FOR USE IN SUCH STRAINERS
Firearms