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发明名称
Improvements relating to the manufacture of wood screws or bolts
摘要
申请公布号
GB383977(A)
申请公布日期
1932.12.01
申请号
GB19310020400
申请日期
1931.07.16
申请人
EDWIN WINSOR REED;ADOLPH WERME
发明人
分类号
B21K1/44
主分类号
B21K1/44
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代理人
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