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经营范围
发明名称
Preparing shark and other hides for tanning
摘要
申请公布号
US2222656(A)
申请公布日期
1940.11.26
申请号
US19380234624
申请日期
1938.10.12
申请人
ERKEL FRANK C
发明人
ERKEL FRANK C.
分类号
C14B1/02;C14B1/46
主分类号
C14B1/02
代理机构
代理人
主权项
地址
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