Invention Grant
- Patent Title: Apparatus for making gas
- Patent Title (中): 制造气体的设备
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Application No.: US3310725Application Date: 1925-05-27
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Publication No.: US1777301APublication Date: 1930-10-07
- Inventor: FREEMAN FREDERICK C
- Applicant: FREEMAN FREDERICK C
- Assignee: Frederick C Freeman
- Current Assignee: Frederick C Freeman
- Priority: US3310725 1925-05-27
- Main IPC: C10J3/28
- IPC: C10J3/28
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