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经营范围
发明名称
BOOKKEEPING APPARATUS
摘要
申请公布号
CA461339(A)
申请公布日期
1949.11.22
申请号
CAD461339
申请日期
申请人
HENDRIK VELDWACHTER
发明人
JAN MIJNDERT BLOEMHOF
分类号
主分类号
代理机构
代理人
主权项
地址
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