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发明名称
AUTOMATIC FALLING DOWN OPERATION DEVICE OF RUBBER SHUTTER GATE
摘要
申请公布号
JPS6051213(A)
申请公布日期
1985.03.22
申请号
JP19830158502
申请日期
1983.08.29
申请人
YAMASAN:KK
发明人
YOKOYAMA YASUHIKO
分类号
E02B7/20
主分类号
E02B7/20
代理机构
代理人
主权项
地址
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