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发明名称
Brake
摘要
申请公布号
US1891805(A)
申请公布日期
1932.12.20
申请号
US19320599446
申请日期
1932.03.17
申请人
PAUL A. FRANTZ
发明人
FRANTZ CRUTHERS I.
分类号
B61H13/00
主分类号
B61H13/00
代理机构
代理人
主权项
地址
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