|
US2950064A
|
|
Two stage pulp refining machine
|
|
US2719463A
|
|
Machines for reducing and treating fibrous paper making materials
|
|
US2749814A
|
|
Process and apparatus for mechanically working fibrous materials
|
|
US2674162A
|
|
Machine for reducing and treating fibrous papermaking materials
|
|
US2551946A
|
|
Machine for working paper stock and other materials
|
|
US2483200A
|
|
Pulp drainer
|
|
US2312545A
|
|
Centrifugal screening machine for paper stock and similar material
|
|
US2066107A
|
|
Method of and apparatus for working paper stock
|
|
US1882662A
|
|
Centrifugal paperstock screen
|
|
US1864818A
|
|
Pulp screening machine and process
|
|
US1755162A
|
|
Method of and apparatus for screening pulp
|
|
US1836243A
|
|
Filter and press roll therefor
|
|
US1682511A
|
|
Apparatus for crushing material
|
|
US1715597A
|
|
Packing
|
|
US1551953A
|
|
Pulp-screening machine
|
|
US1623676A
|
|
Method of and apparatus for working paper stock
|
|
US1708724A
|
|
Method of and apparatus for forming a web in paper making
|
|
US1531482A
|
|
Paper-making machine
|
|
US1533410A
|
|
Pulp-screening machine
|
|
CA191601A
|
|
Paper machine
|
