Invention Grant
- Patent Title: Tin ore treatment
- Patent Title (中): 锡矿处理
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Application No.: US47340643Application Date: 1943-01-23
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Publication No.: US2413762APublication Date: 1947-01-07
- Inventor: GREGOIRE GUTZEIT , ROBERTS ELLIOTT J , THOMPSON ROBERT B
- Applicant: DORR CO
- Assignee: Dorr Co
- Current Assignee: Dorr Co
- Priority: US47340643 1943-01-23
- Main IPC: C22B25/00
- IPC: C22B25/00
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