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发明名称
WERKWIJZE VOOR HET VERVAARDIGEN VAN EEN ROOSTERVORMIG ZIJWAARTS GESPREIDE BALK.
摘要
申请公布号
NL164217(B)
申请公布日期
1980.07.15
申请号
NL19710008400
申请日期
1971.06.18
申请人
HIDEYO WATANABE, TOKIO.
发明人
分类号
B21D47/02;E04C3/04;E04C3/08;(IPC1-7):B21D47/02;B21D31/04
主分类号
B21D47/02
代理机构
代理人
主权项
地址
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