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经营范围
发明名称
Ceramic cutting tool
摘要
申请公布号
US2270607(A)
申请公布日期
1942.01.20
申请号
US19390263576
申请日期
1939.03.22
申请人
CHEMICAL MARKETING COMPANY, INC.
发明人
RYSCHKEWITSCH EUGEN
分类号
C04B35/00;C04B35/10
主分类号
C04B35/00
代理机构
代理人
主权项
地址
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