September 1927 Nonmetallic building materials Trademarks by day
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Nonmetallic building materials Trademarks filed in September 1927
BIG CHIEF

BIG CHIEF

Filed: September 24, 1927
FIRE BRICK
Serial Number: 71255173

TROWLITE

TROWLITE

Filed: September 1, 1927
PORTLAND CEMENT
Serial Number: 71254254