Invention Grant
- Patent Title: Tool-holding device.
- Patent Title (中): 工具装置
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Application No.: US14937617Application Date: 1917-02-17
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Publication No.: US1240729APublication Date: 1917-09-18
- Inventor: KASPERSON FRANK H
- Applicant: KASPERSON FRANK H
- Assignee: Frank H Kasperson
- Current Assignee: Frank H Kasperson
- Priority: US14937617 1917-02-17
Public/Granted literature
- US20160096988A1 Methods for Servicing Subterranean Wells Public/Granted day:2016-04-07
Information query
