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公开(公告)号：US2535324A
公开(公告)日：1950-12-26
申请号：US893948
申请日：1948-02-17
Applicant: SLOPA GEORGE W
Inventor： SLOPA GEORGE W
CPC classification number: E05D7/0423 , E05D2007/0461 , E05D2007/0484 , E05Y2800/12 , E05Y2900/20 , Y10T16/53253
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公开(公告)号：US2416459A
公开(公告)日：1947-02-25
申请号：US57625745
申请日：1945-02-05
Applicant: SLOPA GEORGE W
Inventor： SLOPA GEORGE W
IPC: E05F17/00
CPC classification number: E05F17/00
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