71593164
Feb 28, 1950
Oct 16, 1951
METAL COUPLINGS AND METAL CLAMPS FOR PIPE LINES, METAL FITTINGS FOR PIPE LINES-NAMELY, L'S, T'S, Y'S, CROSSES, ANGLES, CAPS, PLUGS, NIPPLES, AND BUSHINGS; AND CORROSION SHIELDS-NAMELY PLIABLE IMPERVIOUS COVERINGS FOR PIPE JOINTS
Firearms