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公开(公告)号：US2929115A
公开(公告)日：1960-03-22
申请号：US73316358
申请日：1958-05-05
Applicant: BECKSTROM AUGUST W
Inventor： BECKSTROM AUGUST W
CPC classification number: E05D15/0626 , E05D15/0656 , E05Y2201/614 , E05Y2201/684 , E05Y2600/45 , E05Y2600/452 , E05Y2600/46 , E05Y2900/132 , E06B3/4636 , Y10T16/361 , Y10T16/379
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