Clamping band for gaskets and the like and expansion means therefor
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Apparatus for forming inverts and manhole assemblies and the like utilizing adjustable invert forming members joined with an intermediate flexible portion
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Metallic adjustable clamping band for gaskets
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Apparatus for providing a watertight seal for manhole pipe connections including a foldable gasket and clamping band assembly and expansion means for installing the gasket and clamping band assembly
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Adjustable clamping band for gaskets and method for using same
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Methods for forming inverts in manhold assemblies
CA1292356C
Method and apparatus for forming inverts in manhole assemblies and the like
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Gasket for use in manhole bases and the like
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Precast concrete manhole adjustable bolt slot for securing cast iron frame and cover and method for casting same
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Method of making a manhole riser having integral flexible waterlock for manhole covers and having a water tight seal for sealed manhole covers
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Method and apparatus for lining manhole assemblies and the like
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Precast concrete manhole adjustable bolt slot assembly for securing cast iron frame and cover
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Manhole riser having integral flexible waterlock for manhole covers and having a water tight seal for sealed manhole covers
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Gasket for use in manholes and including clamping band having cooperating projections and grooves for preventing relative axial movement of the opposing ends of the clamping band during installation and for facilitating expansion by an expansion jack
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Apparatus for forming inverts and manhole assemblies
