HUHN
MECHANICAL SEALS AND PACKINGS-NAMELY, GRAPHITE PACKINGS, METAL RING PACKINGS, COPPER RING PACKINGS, CARBON RINGS AND COMBINATIONS THEREOF; SPRING SEALS, LOCOMOTIVE SEALS, CARBON SEALS WITH SPRING HOSE AND/OR CORRUGATED SPRINGS, LABYRINTH SEALS, CARBOPLANE SEALS AND TISSUE COLLAR SEALS, FOR USE IN MOVING MACHINE ELEMENTS
Expired · June 29, 1967 · 72275051 ·