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经营范围
发明名称
Mechanical pencil
摘要
申请公布号
US2691364(A)
申请公布日期
1954.10.12
申请号
US19460689034
申请日期
1946.08.07
申请人
PEDRO VALSECCHI ARDUINO CARLOS;JORGE CAPURRO JUAN
发明人
VALSECCHI ARDUINO CARLOS PEDRO;CAPURRO JUAN JORGE
分类号
B43K21/16;B43K21/20;B43K24/16
主分类号
B43K21/16
代理机构
代理人
主权项
地址
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