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经营范围
发明名称
BALL PITCHING MACHINE
摘要
申请公布号
US3521617(A)
申请公布日期
1970.07.28
申请号
USD3521617
申请日期
1968.10.23
申请人
DONALD D. HEINZ
发明人
DONALD D. HEINZ
分类号
A63B69/40;(IPC1-7):F41B7/00;F41D9/00
主分类号
A63B69/40
代理机构
代理人
主权项
地址
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