B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
18/109, 189/17
B32B 1/06 (2006.01) C09J 167/06 (2006.01) F16L 9/10 (2006.01)
Patent
CA 1055212
ABSTRACT An improved joint seal for a clay tile pipe having bell and spigot configurations is provided with unsaturated poly- ester resin in a foamed, low density state, preferably below about 50 pounds per cubic foot.
237381
Grandlic Eugene J.
Korb Stanley N.
Freeman Chemical Corporation
Na
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