US PATENT SUBCLASS 277 / FOR 219
.~ Pipe joints or connections (277/207 A)
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June, 1999
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277 /
HD
SEAL FOR A JOINT OR JUNCTURE
FOR 214
DF
RIBBED CONTACT SURFACE (277/207 R)
{3}
FOR 219
.~ Pipe joints or connections (277/207 A)