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经营范围
发明名称
Lawn mower grinding apparatus
摘要
申请公布号
US2787099(A)
申请公布日期
1957.04.02
申请号
US19530400485
申请日期
1953.12.28
申请人
MAX BALMER RALPH
发明人
BALMER RALPH MAX
分类号
B24B3/42
主分类号
B24B3/42
代理机构
代理人
主权项
地址
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