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John Sheldon

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Details John Sheldon John Sheldon

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Art of making screws

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Die for forming the threads of screws

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Improvements in metallic fencing

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Machinery for reducing the diameter of, and pointing, screw...

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Machinery for the manufacture of metallic screws and screw...

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Improvements in metallic fencing

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Machinery for the manufacture of metallic screws and screw...

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Machinery for the manufacture of screws, etc.

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Profile ID: LFCA-PAI-P-104219

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