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发明名称
Dust protector for track rollers, etc.
摘要
申请公布号
US1959697(A)
申请公布日期
1934.05.22
申请号
US19310555092
申请日期
1931.08.04
申请人
TRACY JAMES J
发明人
TRACY JAMES J.
分类号
F16C33/78
主分类号
F16C33/78
代理机构
代理人
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地址
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