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GB672386A
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Improvements in or relating to the centrifugal casting of pipes and the like
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US2597811A
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Metal pouring apparatus for feeding molten metal into centrifugal molds
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GB636979A
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Improvements in or relating to liquid pouring apparatus for centrifugal molds
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GB638216A
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Improvements in or relating to centrifugal casting
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US2495541A
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Metal pouring apparatus for centrifugal castings
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GB626723A
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Improvements in or relating to annular gray cast iron pipes and the like and method of making the same
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US2512071A
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Apparatus for clamping molds in the centrifugal casting of pipe and the like
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US2486870A
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Collapsible core for centrifugal pipe molds
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US2414890A
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Centrifugal casting apparatus
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US2378723A
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Casting method
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US1924657A
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Piping
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GB334212A
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Improvements in or relating to soil pipes
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US1782775A
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Waste and vent fitting
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US1788969A
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Pipe flask
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US1704854A
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Cover structure for valve service boxes
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US1650489A
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Stock fountain
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US1469888A
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Sand ejector for flasks
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US1262263A
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Pipe-coupling.
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US989593A
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Molding-machine.
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US712047A
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Joint for pipes, fittings, or other connections.
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