Invention Grant
- Patent Title: Push-broom-type vacuum cleaner
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Application No.: US18053037Application Date: 1937-12-18
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Publication No.: US2210724APublication Date: 1940-08-06
- Inventor: WARD LEATHERS
- Applicant: QUADREX CORP
- Assignee: Quadrex Corp
- Current Assignee: Quadrex Corp
- Priority: US18053037 1937-12-18
- Main IPC: A47L5/24
- IPC: A47L5/24 ; A47L5/28 ; A47L9/00 ; A47L9/12 ; A47L9/14
Public/Granted literature
- US20230146564A1 SYSTEM AND METHOD FOR POSITIONING OBJECTS WITHIN AN ENVIRONMENT Public/Granted day:2023-05-11
Information query
