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公开(公告)号：US3458968A
公开(公告)日：1969-08-05
申请号：US3458968D
申请日：1966-11-16
Applicant: LESTER GREGORY JR
Inventor： GREGORY LESTER JR
CPC classification number: B65B57/06
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2.发明授权Monitor means and counter mechanism for use with seed planters and the like 失效监视器和计数器机构与种子植物和类似物一起使用
公开(公告)号：US3422776A
公开(公告)日：1969-01-21
申请号：US3422776D
申请日：1967-01-04
Applicant: LESTER GREGORY JR
Inventor： GREGORY LESTER JR
CPC classification number: A01C7/105 , A01M7/0089 , G06M1/10 , G06M7/00 , Y10S111/903
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