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经营范围
发明名称
FLOOR GRATING
摘要
申请公布号
CA2000004(A1)
申请公布日期
1990.04.03
申请号
CA19892000004
申请日期
1989.10.02
申请人
BERNDT, FRED P., JR.
发明人
BERNDT, FRED P., JR.
分类号
E04C2/42;E04F19/10
主分类号
E04C2/42
代理机构
代理人
主权项
地址
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