|
US1955760A
|
|
Manufacturing cementitious hollow body
|
|
US1573568A
|
|
Method of impregnating cementitious products
|
|
US1573567A
|
|
Centrifugal process of forming and finishing hollow bodies of plastic materials and apparatus therefor
|
|
US1592671A
|
|
Means for positioning reenforcements within molds for making bodies of plastic material
|
|
US1572445A
|
|
Portable plastic-ware-making machine
|
|
US1573566A
|
|
Distributing and placement device for plastic material in centrifugal processes and process of using the same
|
|
US1457185A
|
|
Machine and process for manufacturing articles from plastic materials
|
|
US1473969A
|
|
Concrete-pipe-making machine
|
|
CA262923A
|
|
Cementitious material moulding and curing process
|
|
CA262922A
|
|
Plastic ware mould
|
|
CA262918A
|
|
Casting method
|
|
CA262920A
|
|
Plastic material impregnation
|
|
CA262917A
|
|
Cementitious article manufacture
|
|
CA262919A
|
|
Plastic ware manufacture
|
|
CA262921A
|
|
Application of accelerator to cementitious masses
|
