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发明名称
摘要
申请公布号
JPS581238(B2)
申请公布日期
1983.01.10
申请号
JP19770133851
申请日期
1977.11.07
申请人
NITSUTETSU ROOPU KOGYO KK
发明人
TAKAHASHI HITOMI;YOSHIMURA TAKAFUMI;SHIOYA MASUO;YOTSUTSUJI YASUSHIGE
分类号
B21C1/00;D07B1/08;D07B5/10
主分类号
B21C1/00
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代理人
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