Invention Grant
- Patent Title: Drain valve
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Application No.: US17011627Application Date: 1927-02-23
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Publication No.: US1728676APublication Date: 1929-09-17
- Inventor: GEORGE ROBERT H
- Applicant: GEORGE ROBERT H
- Assignee: Robert H George
- Current Assignee: Robert H George
- Priority: US17011627 1927-02-23
- Main IPC: F16T1/12
- IPC: F16T1/12
Public/Granted literature
- US11330167B2 Image modification based on objects of interest Public/Granted day:2022-05-10
Information query
