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发明名称
HARD WALLBOARD
摘要
申请公布号
JPH02210146(A)
申请公布日期
1990.08.21
申请号
JP19890031687
申请日期
1989.02.10
申请人
IG TECH RES INC
发明人
TAKAHASHI RYUICHI;TAKIGUCHI HIDEKI
分类号
E04F13/14
主分类号
E04F13/14
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