DIAMOND EXPANSION BOLT CO. Trademarks
DIAMOND

DIAMOND

Filed: November 12, 1913
EXPANSION-SHIELDS, SCREWS, EXPANSION-BOLTS, SCREW-ANCHORS, TOGGLE-BOLTS, TWIN BOLTS, TWIN EYES, AND BOILER-REPAIR BOLTS.
Owned by: DIAMOND EXPANSION BOLT CO.
Serial Number: 71073916

N

N

Filed: June 4, 1918
DRILLS, DRILL-HANDLES, DRILL-POINTS, AND DRILL-BITS
Owned by: DIAMOND EXPANSION BOLT CO.
Serial Number: 71111356

DIAMOND

DIAMOND

Filed: June 26, 1929
METAL CLAMPS FOR METAL CONDUIT, CABLE, AND PIPE
Owned by: DIAMOND EXPANSION BOLT CO.
Serial Number: 71286162