F01L 15/04
Main valve being combined with auxiliary valve
Official title: main valve being combined with auxiliary valve (of drag valve type F01L15/10)
F01L15/04 (Main valve being combined with auxiliary valve) appears on 0 US grants and 1 published applications in this corpus.
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| Year | Granted patents | Published applications |
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| 2007 | 0 | 1 |
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