GB257882A
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Improvements in or relating to means for the manufacture, centrifugally, of pipes, columns and other articles
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US1595911A
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Means for the manufacture, centrifugally, of pipes, columns, and other articles
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US1531342A
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Means for the manufacture, centrifugally, of pipes, columns, and other hollow articles
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US1536682A
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Means for the lining or manufacture, centrifugally, of pipes, columns, and other hollow articles
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US1500414A
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Means for the manufacture, centrifugally, of pipes, columns, and other hollow articles
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US1525878A
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Means for the manufacture centrifugally, of pipes, coluhns, and other hollow articles
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GB216605A
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Improvements in or relating to means for the manufacture, centrifugally, of pipes, columns and other hollow articles
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GB217627A
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Improvements in or relating to means for the manufacture, centrifugally, of pipes, columns and other hollow articles
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GB220669A
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Improvements in or relating to means for the lining or manufacture, centrifugally, of pipes, columns and other hollow articles
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GB215068A
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Improvements in or relating to the manufacture, centrifugally, of pipes, columns and other hollow articles
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GB208742A
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Improvements in joints for concrete pipes and the like
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AU34016B
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Improvements in window sashes and attachments fop excluding" flies andother insects
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