Invention Grant
- Patent Title: Extractor for particulate material
- Patent Title (中): 颗粒材料提取机
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Application No.: US29796652Application Date: 1952-07-09
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Publication No.: US2711833APublication Date: 1955-06-28
- Inventor: JACOBSON EUGENE W , WEDNER BENJAMIN M , ECKLER NORMAN H
- Applicant: GULF RESEARCH DEVELOPMENT CO
- Assignee: Gulf Research Development Co
- Current Assignee: Gulf Research Development Co
- Priority: US29796652 1952-07-09
- Main IPC: B01J3/02
- IPC: B01J3/02 ; B01J8/00
Public/Granted literature
- USD1012504S1 Body of electric toothbrush Public/Granted day:2024-01-30
Information query
