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经营范围
发明名称
Vegetable parchment
摘要
申请公布号
US1996857(A)
申请公布日期
1935.04.09
申请号
US19320608563
申请日期
1932.04.30
申请人
BALLINGER DAVIDSON PAUL
发明人
DAVIDSON PAUL BALLINGER
分类号
主分类号
代理机构
代理人
主权项
地址
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