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公开(公告)号：US1098585A
公开(公告)日：1914-06-02
申请号：US1913776569
申请日：1913-06-30
Applicant: WESTERN DOOR CONTROL COMPANY
Inventor： MILLS EDWARD N
CPC classification number: F15B15/223 , Y10T16/276
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公开(公告)号：US1064847A
公开(公告)日：1913-06-17
申请号：US1912707495
申请日：1912-07-03
Applicant: WESTERN DOOR CONTROL COMPANY
Inventor： MILLS EDWARD N
CPC classification number: B66B13/08
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