U.S. federal trademark · Serial No. 71486701 · Reg. No. 0425522
ADMIXTURE OF VERMICULITE, PORTLAND CEMENT, AND A WATER-PROOFING COMPOUND, SAID ADMIXTURE BEING CONTAINED IN BAGS AND OTHER SUITABLE CONTAINERS AND USED FOR INSULATING UNDERGROUND PIPES AGAINST LOSS OF HEAT CONDUCTED THROUGH SAID PIPES
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