Invention Grant
- Patent Title: Rotary hoist
- Patent Title (中): 旋转式起重机
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Application No.: US11932226Application Date: 1926-06-29
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Publication No.: US1775341APublication Date: 1930-09-09
- Inventor: GREVE EDGAR E
- Applicant: OIL WELL SUPPLY CO
- Assignee: Oil Well Supply Co
- Current Assignee: Oil Well Supply Co
- Priority: US11932226 1926-06-29
- Main IPC: B66D1/20
- IPC: B66D1/20
Public/Granted literature
- US08701103B1 Method and system for minimizing or eliminating downtime when updating a website Public/Granted day:2014-04-15
Information query
