US980035A
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Process of separation.
|
CA118721A
|
|
Ore separation process
|
US960470A
|
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Apparatus for electrical separation.
|
US972459A
|
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Process for separation of ingredients of mixed solid materials.
|
US938732A
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Roasting separation process.
|
US970002A
|
|
Process of separation.
|
US970001A
|
|
Process of electrical separation.
|
US899364A
|
|
Electric separator.
|
US1178430A
|
|
Process of electrical separation.
|
CA106546A
|
|
Method of electrostatic separation
|
US859998A
|
|
Method of electrical separation.
|
US840802A
|
|
Electrostatic separator.
|
US840845A
|
|
Feeder for comminuted material.
|
US827770A
|
|
Electrostatic separator.
|
US827116A
|
|
Apparatus for electrostatic separation.
|
US827115A
|
|
Method of electrostatic separation.
|
US840815A
|
|
Electrostatic separator.
|
US831916A
|
|
Electrostatic apparatus.
|