E - Fixed Constructions – 04 – B
Patent
E - Fixed Constructions
04
B
72/140, 72/141,
E04B 1/68 (2006.01)
Patent
CA 1250759
ABSTRACT A waterstop for concrete structures, of the type consisting of an extruded strip of elastomeric material having a general flat medial portion extending between longitudinally ribbed side wing anchor portions is internally pressurized so as to compensate for dimensional changes of the concrete joint.
495242
Black David A.
Deans John J.f.
Black David A.
Deans John J.f.
Ridout & Maybee Llp
LandOfFree
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