Invention Grant
- Patent Title: Machine for casting curved stereotype plates
- Patent Title (中): 铸造弯曲刻板铭牌的机器
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Application No.: US14852317Application Date: 1917-02-14
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Publication No.: US1433550APublication Date: 1922-10-31
- Inventor: HOPKINS CHARLES E
- Applicant: HOPKINS CHARLES E
- Assignee: Charles E Hopkins
- Current Assignee: Charles E Hopkins
- Priority: US14852317 1917-02-14
- Main IPC: B41D3/00
- IPC: B41D3/00
Public/Granted literature
- US09794360B1 Estimating unique viewers of media content without cookies Public/Granted day:2017-10-17
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