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US2613875A
|
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Rail joint
|
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US1919131A
|
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Rail-joint connection
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GB381052A
|
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Improvements in rail-joint connections
|
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GB373548A
|
|
Improvements in the manufacture of stamped metal wheels
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GB366399A
|
|
Improved pipe fitting and method of its manufacture
|
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US1816298A
|
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Manufacture of hollow sheet metal shapes
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GB331038A
|
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Process and apparatus for the production of pipe connections (fittings) of sheet metal
|
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GB308214A
|
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Rotary press for the production of castings
|
|
GB285477A
|
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Improved method of, and apparatus for, manufacturing making-up pieces, particularly for pipe joints
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US1406895A
|
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Apparatus for rolling tires
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