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发明名称
Protective device
摘要
申请公布号
US1834757(A)
申请公布日期
1931.12.01
申请号
US19280314642
申请日期
1928.10.24
申请人
GRANT ELEVATOR EQUIPMENT CORP.
发明人
ZABRISKIE HARRY H.;GUSSACK NATHAN A.
分类号
B66B13/30
主分类号
B66B13/30
代理机构
代理人
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地址
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