Invention Grant
- Patent Title: Collapsible file container
- Patent Title (中): 可折叠文件容器
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Application No.: US12227661Application Date: 1961-07-06
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Publication No.: US3216426APublication Date: 1965-11-09
- Inventor: FURRER WERNER H
- Applicant: RUD FURRER SOHNE A G
- Assignee: Rud Furrer Sohne A G
- Current Assignee: Rud Furrer Sohne A G
- Priority: CH637061 1961-05-31
- Main IPC: B42F7/14
- IPC: B42F7/14 ; B42F15/00
Public/Granted literature
- US08297365B2 Drilling string back off sub apparatus and method for making and using same Public/Granted day:2012-10-30
Information query
