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发明名称
Plural space bar operated mechanism for controlling proportional escapements
摘要
申请公布号
US3352399(A)
申请公布日期
1967.11.14
申请号
US19650485228
申请日期
1965.09.07
申请人
ROYAL TYPEWRITER COMPANY, INC.
发明人
MADISON THEODORE N.
分类号
B41J19/58
主分类号
B41J19/58
代理机构
代理人
主权项
地址
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