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发明名称
IMPULSE-ACTUATED SPRING MOTOR
摘要
申请公布号
US3621939(A)
申请公布日期
1971.11.23
申请号
USD3621939
申请日期
1970.01.02
申请人
CHILD GUIDANCE TOYS INC.
发明人
DAVID C. HUGHES
分类号
F03G1/00;(IPC1-7):F03G1/00
主分类号
F03G1/00
代理机构
代理人
主权项
地址
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