发明名称 Transducer guard for trolling motor
摘要 A guard is provided that protects sonar transducers attached to trolling motors from damage due to impact with underwater debris. The protective guard is mounted on the trolling motor in front of the sonar transducer.
申请公布号 US7092316(B2) 申请公布日期 2006.08.15
申请号 US20040843502 申请日期 2004.05.11
申请人 ROTH II JAN JUSTIN 发明人 ROTH, II JAN JUSTIN
分类号 H04R1/00 主分类号 H04R1/00
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