United States Patent 2761824

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Primary Class:
201/4
Other Classes:
201/20, 208/435, 201/33, 48/210, 48/DIG.007, 208/430
International Classes:
C10B57/04; C10B57/00
US Patent References:
1984380Process of producing chemical reactions
2441594Apparatus for beneficiating nonmagnetic ores to render them magnetic
2515542Method for disintegration of solids
2560807
2664390Carbonization of coal
Foreign References:
GB168581A