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US1788469A
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Shower pipe
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US1730469A
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Apparatus for making pipes
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US1720741A
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Mold-forming apparatus
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US1706660A
|
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Box suspension for suction rolls
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US1862909A
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Suction roll
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US1854053A
|
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Method and machine for perforating suction-roll shells
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US1808055A
|
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Paper making machine
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US1748360A
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Manufacture of reenforced paper and the like
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US1673013A
|
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Cast pipe and apparatus for making pipe
|
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US1679910A
|
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Centrifugal casting machine
|
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US1717615A
|
|
Cast-iron pipe and process of making pipe
|
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US1674635A
|
|
Expansion mandrel
|
|
US1653817A
|
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Breast roll for paper machines and the like
|
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US1745685A
|
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Paper-machine drier
|
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US1600692A
|
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Roll construction
|
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US1678083A
|
|
Suction roll
|
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US1572303A
|
|
Method of forming internal keys on tubes
|
|
US1600509A
|
|
Paper-machine press
|
|
US1739038A
|
|
Paper-making method and machine
|
|
US1686624A
|
|
Apparatus for casting
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