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发明名称
X-frame construction
摘要
申请公布号
US2739822(A)
申请公布日期
1956.03.27
申请号
US19540437743
申请日期
1954.06.18
申请人
A. O. SMITH CORPORATION
发明人
SCHILBERG ARNOLD G.
分类号
B62D21/06
主分类号
B62D21/06
代理机构
代理人
主权项
地址
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