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发明名称
Spoon
摘要
申请公布号
US1980477(A)
申请公布日期
1934.11.13
申请号
US19330695793
申请日期
1933.10.30
申请人
ERTOLA CHARLES A;SLEE ARTHUR L
发明人
ERTOLA CHARLES A.;SLEE ARTHUR L.
分类号
A61J7/00
主分类号
A61J7/00
代理机构
代理人
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地址
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