B63B 22/163

Comprising a bell or other audible signal

Official title: {comprising a bell or other audible signal}

B63B22/163 (Comprising a bell or other audible signal) appears on 3 US grants and 3 published applications in this corpus.

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Granted patents
3
Published applications
3
Assignees
1
Inventors
8
Latest grant
25 Sep 2018