Inventor
TRIMBLE CARROLL O
US5 patents
Patents
5 patentsUS5032197AJul 16, 1991
Cast-in-place manhole liner method
ACTION PRODUCTS MARKETING CORP61 citations93
US5452853ASep 26, 1995
Method and apparatus for spraying grout onto the interior surface of an enclosed elongated cavity
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US4997602AMar 5, 1991
Cast-in-place manhole liner method
ACTION PRODUCTS MARKETING CORP49 citations89
US5017313AMay 21, 1991
Method and means for repairing existing manhole
ACTION PRODUCTS MARKETING CORP21 citations79
US4995584AFeb 26, 1991
Cast-in-place manhole liner apparatus
ACTION PRODUCTS MARKETING CORP9 citations70