|
GB673688A
|
|
Process and apparatus for the manufacture of hollow bodies
|
|
US2569538A
|
|
Apparatus and method for molding tubes from cementitious material
|
|
GB654582A
|
|
Improvements in or relating to the production of cement-asbestos sheet material
|
|
GB662638A
|
|
Process and apparatus for manufacturing profiled pieces of cementitious material
|
|
US2644373A
|
|
Apparatus for the continuous production of cement-fiber sheets
|
|
US2297504A
|
|
Method and apparatus for molding plastic material
|
|
GB541520A
|
|
Improvements in and relating to the moulding of hollow bodies, such as pipes, from apasty material
|
|
US2369608A
|
|
Apparatus for forming hollow bodies
|
