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经营范围
发明名称
Pulpstone
摘要
申请公布号
US2745226(A)
申请公布日期
1956.05.15
申请号
US19550511832
申请日期
1955.05.31
申请人
NORTON COMPANY
发明人
BETH WALTER F.
分类号
B24D5/06
主分类号
B24D5/06
代理机构
代理人
主权项
地址
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