Invention Grant
- Patent Title: Pressure-filter.
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Application No.: US1909475509Application Date: 1909-02-01
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Publication No.: US929636APublication Date: 1909-07-27
- Inventor: SWEETLAND ERNEST J
- Applicant: SWEETLAND ERNEST J
- Assignee: Ernest J Sweetland
- Current Assignee: Ernest J Sweetland
- Priority: US1909475509 1909-02-01
Information query
