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发明名称
Roll grinding machine
摘要
申请公布号
US1831085(A)
申请公布日期
1931.11.10
申请号
US19280324836
申请日期
1928.12.10
申请人
WILLIAMS HARRISON R
发明人
WILLIAMS HARRISON R.
分类号
B24B5/04
主分类号
B24B5/04
代理机构
代理人
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地址
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