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经营范围
发明名称
Leather tanning
摘要
申请公布号
US2044946(A)
申请公布日期
1936.06.23
申请号
US19340754211
申请日期
1934.11.22
申请人
THE GRASSELLI CHEMICAL COMPANY
发明人
KANNEL CHARLES
分类号
C14B1/00
主分类号
C14B1/00
代理机构
代理人
主权项
地址
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