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经营范围
发明名称
Grate and grate bar
摘要
申请公布号
US2527872(A)
申请公布日期
1950.10.31
申请号
US19450614924
申请日期
1945.09.07
申请人
BALMFIRTH DOROTHY B;BALMFIRTH FRANCES V;BALMFIRTH COLLINS OLIVE RUTH
发明人
BALMFIRTH DOROTHY B.;BALMFIRTH FRANCES V.;COLLINS OLIVE RUTH BALMFIRTH
分类号
F23H11/04
主分类号
F23H11/04
代理机构
代理人
主权项
地址
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