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发明名称
Bell lift
摘要
A device designed to lift and move precast concrete pipes in a level manner. This device, once fabricated into one solid steel piece, will be able to lift a tremendous amount of weight, while allowing coworkers to maintain a safe distance.
申请公布号
US2005200144(A1)
申请公布日期
2005.09.15
申请号
US20040920978
申请日期
2004.08.18
申请人
BELL FRANK J.
发明人
BELL FRANK J.
分类号
B66C1/66;(IPC1-7):B66C1/66
主分类号
B66C1/66
代理机构
代理人
主权项
地址
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