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GB191213054A
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Method of and Means for Jointing Pipes, particularly of Concrete.
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GB191213055A
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Improvements in or relating to the Extraction of the Core Keys of Pipe Moulds or the like.
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GB191009750A
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Improvements relating to Raising, Turning and Lowering Heavy Objects such as Mould Boxes and the like.
|
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GB191005500A
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Improved Collapsible Core for Making Hollow Concrete Posts and the like.
|
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GB191005501A
|
|
Method of Manufacturing Pipes of Concrete and Means therefor.
|
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GB190929490A
|
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Improvements in Means for Attaching Rails to Concrete Sleepers.
|
|
CA120868A
|
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Process of manufacturing concrete articles
|
|
GB190605881A
|
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A Process of and Means for Manufacturing Concrete Slabs, Beams, Pipes and other Concrete Articles.
|
|
GB190306394A
|
|
Improvements in Non-refillable Bottles and like Vessels
|
|
CA249674A
|
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Rope untwisting machinery
|
|
CA223740A
|
|
Concrete moulding apparatus
|
|
CA224596A
|
|
Rope untwisting apparatus
|
|
CA227242A
|
|
Machine for moulding powdered substances
|
|
CA212847A
|
|
Rope untwisting apparatus
|
