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发明名称
Musical pen
摘要
A single portable instrument is capable of use both as a writing device and as a wind instrument.
申请公布号
US4371278(A)
申请公布日期
1983.02.01
申请号
US19810236589
申请日期
1981.02.20
申请人
JOO, HONG K.
发明人
JOO, HONG K.
分类号
B43K29/00;G10D7/06;(IPC1-7):B43K29/00;G10D11/00;A63H5/00
主分类号
B43K29/00
代理机构
代理人
主权项
地址
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