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公开(公告)号：US657982A
公开(公告)日：1900-09-18
申请号：US1899004823
申请日：1899-03-02
Applicant: GERWIEN WILLIAM
Inventor： GERWIEN WILLIAM
CPC classification number: D05B81/00 , E05Y2201/416 , Y10T16/53824
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公开(公告)号：US1007859A
公开(公告)日：1911-11-07
申请号：US1910598273
申请日：1910-12-20
Applicant: GERWIEN WILLIAM
Inventor： GERWIEN WILLIAM
CPC classification number: E05B63/248 , Y10T292/03 , Y10T292/1052 , Y10T292/18
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