Invention Grant
- Patent Title: Megaphone
- Patent Title (中): 扩音器
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Application No.: US13801621Application Date: 2013-03-13
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Publication No.: US09014389B2Publication Date: 2015-04-21
- Inventor: Thomas Dooley , Mathieu Zastawny
- Applicant: Thomas Dooley , Mathieu Zastawny
- Applicant Address: US PA Boothwyn
- Assignee: Nielsen-Kellerman Co.
- Current Assignee: Nielsen-Kellerman Co.
- Current Assignee Address: US PA Boothwyn
- Agent Cozen O'Connor
- Main IPC: H04R27/04
- IPC: H04R27/04 ; H04R1/02
Abstract:
A rugged megaphone comprising a body, two opposing handles and a horn and further comprising a rim bumper attached to the tip of the horn; providing a megaphone of superior durability.
Public/Granted literature
- US20140029760A1 MEGAPHONE Public/Granted day:2014-01-30
Information query
