US1491600A - Electromagnetic separator - Google Patents
US1491600A US482069A US48206921A US1491600A US 1491600 A US1491600 A US 1491600A US 482069 A US482069 A US 482069A US 48206921 A US48206921 A US 48206921A US 1491600 A US1491600 A US 1491600A Authority US United States Prior art keywords core winding magnetic sleeve separator …
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