Invention Grant
- Patent Title: Pressure differential responsive device
- Patent Title (中): 压差响应装置
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Application No.: US10932449Application Date: 1949-08-09
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Publication No.: US2661754APublication Date: 1953-12-08
- Inventor: DONALDSON JR ROBERT R
- Applicant: HAGAN CORP
- Assignee: Hagan Corp
- Current Assignee: Hagan Corp
- Priority: US10932449 1949-08-09
- Main IPC: A23N5/08
- IPC: A23N5/08 ; G05D16/18
Public/Granted literature
- US20060047016A1 Method of making a three-dimensional decorative article Public/Granted day:2006-03-02
Information query
