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经营范围
发明名称
Yieldable back support for seats
摘要
申请公布号
US1744258(A)
申请公布日期
1930.01.21
申请号
US19280264875
申请日期
1928.03.26
申请人
BITZENBURGER FRANK C
发明人
BITZENBURGER FRANK C.
分类号
B60N2/02
主分类号
B60N2/02
代理机构
代理人
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地址
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