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公开(公告)号:US2743003A
公开(公告)日:1956-04-24
申请号:US32930353
申请日:1953-01-02
Applicant: ALLEN JAMES V
Inventor: ALLEN JAMES V
CPC classification number: B65G17/065 , B65G17/38 , B65G2201/02
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公开(公告)号:US679286A
公开(公告)日:1901-07-30
申请号:US1900038336
申请日:1900-12-01
Applicant: ALLEN JAMES V
Inventor: ALLEN JAMES V
CPC classification number: E01H1/045 , A47L11/4041
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