Pipe joints or couplings – Frangible element – Score line or groove
Patent
1981-12-28
1984-10-30
Arola, Dave W.
Pipe joints or couplings
Frangible element
Score line or groove
285 39, 285 93, 285175, 285332, 285355, 285370, 411 10, F16L 3500
Patent
active
044796668
ABSTRACT:
A fastening assembly includes:
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patent: 3406989 (1968-10-01), Gross
patent: 3441292 (1969-04-01), Gross
patent: 3701550 (1972-10-01), Jacobson
Anderson Robert A.
Welsh James W.
Arola Dave W.
Haefliger William W.
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