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发明名称
Improvements relating to mechanical multi-colour writing instruments
摘要
申请公布号
GB805835(A)
申请公布日期
1958.12.17
申请号
GB19550011723
申请日期
1955.04.22
申请人
HEINRICH MORLOCK;HELMUT MORLOCK;KURT MORLOCK
发明人
MORLOCK KURT;KRATZ EUGEN
分类号
B43K24/16
主分类号
B43K24/16
代理机构
代理人
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