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公开(公告)号：US1583084A
公开(公告)日：1926-05-04
申请号：US28993119
申请日：1919-04-14
Applicant: R F CARPENTER MFG COMPANY
Inventor： MALMBERG ARVID J
CPC classification number: E05F1/065 , E05F1/1207 , E05Y2201/604 , E05Y2201/638 , E05Y2201/688 , E05Y2900/132 , Y10T16/53984
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