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CA75258A
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Machine for moulding pipe
|
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GB190018457A
|
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Improved Method of and Apparatus for Manufacture of Pipes of Cement or similar Material
|
|
US674296A
|
|
Method of and apparatus for the manufacture of cement pipes.
|
|
CA71080A
|
|
Method of and apparatus for manufacturing cement pipes
|
|
GB190009131A
|
|
Improvements relating to the Manufacture of Pipes from Cement or similar material.
|
|
CA68780A
|
|
Apparatus for casting cement pipes
|
|
US658067A
|
|
Apparatus for making cement pipes.
|
|
GB189918353A
|
|
Improved Method and Apparatus for Casting Cement Pipes.
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