Invention Grant
- Patent Title: Photometer.
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Application No.: US1908454799Application Date: 1908-09-25
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Publication No.: US914282APublication Date: 1909-03-02
- Inventor: IVES FREDERIC E
- Applicant: IVES FREDERIC E
- Assignee: Frederic E Ives
- Current Assignee: Frederic E Ives
- Priority: US1908454799 1908-09-25
Information query
