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公开(公告)号:US4596651A
公开(公告)日:1986-06-24
申请号:US459182
申请日:1983-01-19
摘要: A process for extracting bitumen from tar sands comprises a two-stage extraction wherein both specific and non-specific solvents are used to obtain a bitumen product low in fines and asphaltenes.
摘要翻译: 从焦油砂中提取沥青的方法包括两步萃取,其中使用特定和非特异性溶剂来获得低分子和沥青质的沥青产物。
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公开(公告)号:US5185949A
公开(公告)日:1993-02-16
申请号:US810155
申请日:1991-12-19
申请人: James S. Patterson
发明人: James S. Patterson
IPC分类号: A01K97/12
CPC分类号: A01K97/125
摘要: A fishing pole mounting device to signal the movements of a fishing pole when a fish strikes the bait. A cradle means rests on top of a box shaped enclosure. The cradle holds the pole and translates downward movements of the pole into an electrical signal for audible and/or visual alarms.
摘要翻译: 一个钓鱼竿安装装置,用于在鱼撞击诱饵时发出钓鱼竿的动作。 支架意味着搁置在盒形外壳的顶部。 托架固定杆,并将杆的向下运动转换成电信号,用于声音和/或视觉报警。
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