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发明名称
磁力线坠
摘要
该产品用于建筑工程垂直、水平的检测校正。可附着铁、木、砖墙。
申请公布号
CN3011391S
申请公布日期
1991.11.13
申请号
CN90303741.6
申请日期
1990.12.26
申请人
杨建龙
发明人
杨建龙
分类号
10-04-B0303
主分类号
10-04-B0303
代理机构
代理人
主权项
地址
325000浙江省温州市四营堂巷2-2号
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