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发明名称
Expansion sheath for wood-spikes
摘要
申请公布号
US1922120(A)
申请公布日期
1933.08.15
申请号
US19320641059
申请日期
1932.11.03
申请人
RICHARD BROSIG
发明人
BROSIG RICHARD
分类号
F16B37/12
主分类号
F16B37/12
代理机构
代理人
主权项
地址
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