Invention Grant
- Patent Title: Door, sash, and the like
- Patent Title (中): 门，窗扇等
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Application No.: US17007750Application Date: 1950-06-24
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Publication No.: US2609573APublication Date: 1952-09-09
- Inventor: WILLIAM JOHNSON
- Applicant: WILLIAM JOHNSON
- Assignee: Johnson William
- Current Assignee: Johnson William
- Priority: US17007750 1950-06-24
- Main IPC: E06B3/10
- IPC: E06B3/10
Public/Granted literature
- US11474071B2 Alkalinity measurement of an aqueous sample Public/Granted day:2022-10-18
Information query
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