Clemmer, David Grant Trademarks
PIPE BRIDGE
METAL PIPE SUPPORTS USED TO SUSPEND UNDERGROUND PROTECTIVE PIPE CASINGS
Owned by: Clemmer, David Grant
Serial Number: 75624556
GRADE MAKER
metal clamp, namely, an adjustable pipe support for water or sewer lines within a steel casing
Owned by: Clemmer, David Grant
Serial Number: 75668299
