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经营范围
发明名称
Scaffold support or snowhook
摘要
申请公布号
US1946757(A)
申请公布日期
1934.02.13
申请号
US19310533550
申请日期
1931.04.28
申请人
PARKER HALLETT C
发明人
PARKER HALLETT C.
分类号
E04D13/10;E04D15/00
主分类号
E04D13/10
代理机构
代理人
主权项
地址
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