71130198
Mar 26, 1920
Nov 2, 1920
[Valves for Pipe Lines]; Cocks; Fittings for Air, Water, Steam, and Other Fluid Conveying Pipes; [Blower-Valves, Fittings and Connections Therefor-- Self-Closing Valves; Check-Valves; Fluid-Pressure-Operated Valves; Relief-Valves]; Flexible Connections and Terminals for Fluid Conveying Pipes; Ball-and-Socket Joints for Pipes
Firearms