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公开(公告)号：US1784910A
公开(公告)日：1930-12-16
申请号：US21944827
申请日：1927-09-14
Applicant: BERNARD ROWNTREE
Inventor： BERNARD ROWNTREE
IPC: E05D15/06
CPC classification number: E05D15/063 , E05Y2201/614 , E05Y2201/688 , E05Y2900/132 , Y10T16/3813 , Y10T16/3837
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公开(公告)号：US1710192A
公开(公告)日：1929-04-23
申请号：US29796728
申请日：1928-08-07
Applicant: BERNARD ROWNTREE
Inventor： BERNARD ROWNTREE
IPC: B66B3/02
CPC classification number: B66B3/026
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