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经营范围
发明名称
Spring-loaded hinge for balancing the weight of a wing, lid or the like
摘要
申请公布号
US3204287(A)
申请公布日期
1965.09.07
申请号
US19630268627
申请日期
1963.03.28
申请人
WILHELM GRONBACH
发明人
GRONBACH WILHELM
分类号
E05F1/12
主分类号
E05F1/12
代理机构
代理人
主权项
地址
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