发明名称 Improvements in or relating to gate and door supports
摘要 622,519. Castors. RELPH, T. March 18, 1947, No. 7406. [Class 52 (i)] A spring-mounted castor wheel 8 used as a door or gate support has a rear guide member 12 slidable in the fixing bracket 2 to prevent the yoke 7 being drawn away from the door.
申请公布号 GB622519(A) 申请公布日期 1949.05.03
申请号 GB19470007406 申请日期 1947.03.18
申请人 THOMAS RELPH 发明人
分类号 E05D15/00 主分类号 E05D15/00
代理机构 代理人
主权项
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