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发明名称
Spur center head and method of using the same
摘要
申请公布号
US2346192(A)
申请公布日期
1944.04.11
申请号
US19430489946
申请日期
1943.06.07
申请人
SCHWARTZ WALTER L
发明人
SCHWARTZ WALTER L.
分类号
B27C7/04
主分类号
B27C7/04
代理机构
代理人
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地址
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