|
US2476395A
|
|
Apparatus for the centrifugal molding of solid articles from plastic materials
|
|
GB531032A
|
|
Improvements in helically welded metal pipes and in apparatus for the manufacture thereof
|
|
US2233233A
|
|
Machine for helically coiling and welding strip metal to form continuous pipes
|
|
US2060544A
|
|
Method and apparatus for constructing pipe
|
|
US1971088A
|
|
Apparatus for centrifugally molding concrete pipes and other tubular bodies
|
|
US1931597A
|
|
Apparatus for centrifugally molding concrete blocks, slabs, and like articles
|
|
GB398983A
|
|
Improved apparatus for centrifugally moulding concrete pipes and other tubular bodies
|
|
GB396931A
|
|
Improved apparatus for centrifugally moulding concrete blocks, slabs and like articles
|
|
AU2454130B
|
|
Method of manufacturing mild steel and like metal pipes
|
|
GB290050A
|
|
Apparatus for centrifugally moulding solid articles from plastic material
|
|
US1703024A
|
|
Apparatus for centrifugally molding solid articles from plastic material
|
|
US1670013A
|
|
Means for centrifugally molding concrete and other pipes
|
|
GB239163A
|
|
Means for centrifugally moulding concrete and other pipes and shapes
|
|
GB239162A
|
|
Improved centrifugal apparatus for moulding concrete slabs or the like
|
