DUCTILE IRON PIPE RESEARCH ASSOCIATION Trademarks
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Filed: June 15, 1981
Technical Books and Booklets Relating to [ Cast Iron and ] Ductile Iron Pipes
Owned by: DUCTILE IRON PIPE RESEARCH ASSOCIATION
Serial Number: 73314966

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Filed: June 15, 1981
Engineering Consulting Services and Research Services in the Field of Piping Materials, and Association Services-Namely,…
Owned by: DUCTILE IRON PIPE RESEARCH ASSOCIATION
Serial Number: 73314967

DIPRA

DIPRA

Filed: September 20, 1996
laboratory testing, engineering, and technical research services in the field of ductile iron pipe
Owned by: DUCTILE IRON PIPE RESEARCH ASSOCIATION
Serial Number: 75169670