Invention Grant
- Patent Title: Fluid door-controller.
- Patent Title (中): 流体门控制器
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Application No.: US1913776569Application Date: 1913-06-30
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Publication No.: US1098585APublication Date: 1914-06-02
- Inventor: MILLS EDWARD N
- Applicant: WESTERN DOOR CONTROL COMPANY
- Assignee: Western Door Control Company
- Current Assignee: Western Door Control Company
- Priority: US1913776569 1913-06-30
Information query
