Invention Grant
- Patent Title: Photoelectric exposure meter
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Application No.: US17249137Application Date: 1937-11-02
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Publication No.: US2227166APublication Date: 1940-12-31
- Inventor: FERDINAND TONNIES HANS
- Applicant: FERDINAND TONNIES HANS
- Assignee: Tonnies Hans Ferdinand
- Current Assignee: Tonnies Hans Ferdinand
- Priority: DE2227166X 1936-10-12
- Main IPC: G01J1/04
- IPC: G01J1/04 ; G01J1/06
Public/Granted literature
- US20210275064A1 SYSTEM, METHODS AND APPARATUSES FOR IN SITU ELECTROCHEMICAL IMAGING Public/Granted day:2021-09-09
Information query
