Invention Grant
- Patent Title: Disinfecting attachment for vacuum cleaners
- Patent Title (中): 消毒吸尘器附件
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Application No.: US33373629Application Date: 1929-01-19
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Publication No.: US1783859APublication Date: 1930-12-02
- Inventor: SMITH BERNARD P
- Applicant: REGINA CORP
- Assignee: Regina Corp
- Current Assignee: Regina Corp
- Priority: US33373629 1929-01-19
- Main IPC: A47L7/04
- IPC: A47L7/04
Information query
