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发明名称
45 DEGREE BLOCK
摘要
申请公布号
CA2049135(A1)
申请公布日期
1992.03.19
申请号
CA19912049135
申请日期
1991.08.13
申请人
PITTSBURGH CORNING CORPORATION
发明人
FRANCIK, CHARLES A.;FLEMING, HARRY A., JR.;HOCK, DONALD E.
分类号
E04B1/28;E04B2/02;E04C1/42
主分类号
E04B1/28
代理机构
代理人
主权项
地址
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