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GB523312A
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Improvements in cement and asbestos base mixtures used as plaster work, covering layers or walls
|
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GB467526A
|
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Improvements in or relating to the manufacture of structural objects or articles with the aid of fibrous cement
|
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GB378932A
|
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Improvements in and relating to the manufacture of armoured or reinforced concrete pipes or similar bodies
|
|
US2001237A
|
|
Machine for the manufacture of pipes
|
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GB344838A
|
|
Reinforced concrete pipe and process for its manufacture
|
|
US1817870A
|
|
Joint for pipes
|
|
GB268303A
|
|
Improvements in or relating to joints for pipes
|
|
GB203313A
|
|
Improved method of constructing buildings and other structures
|
|
US1499719A
|
|
Method of and apparatus for use in the manufacture of pipes, tubes, and the like
|
|
US1608197A
|
|
Joint for pipes and the like
|
|
GB197128A
|
|
Improvements in or relating to joints for pipes and the like
|
|
GB199084A
|
|
Improvements in or relating to the manufacture of pipes, tubes and the like, and apparatus for use therein
|
|
US1441908A
|
|
Process of making pipes of cement
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