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经营范围
发明名称
Jacob's ladder
摘要
申请公布号
US2348068(A)
申请公布日期
1944.05.02
申请号
US19420469794
申请日期
1942.12.22
申请人
H. K. METAL CRAFT MANUFACTURING CO.
发明人
HOPP HAROLD P.;KUNZELMAN EDWARD
分类号
B63B27/14;E06C1/56
主分类号
B63B27/14
代理机构
代理人
主权项
地址
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