Voice changer
Description
Claims
The ornamental design for a voice changer, as shown.
Patent History
Patent number: D680999
Type: Grant
Filed: Sep 28, 2012
Date of Patent: Apr 30, 2013
Inventor: Chiu Chan (Kowloon)
Primary Examiner: Austin Murphy
Application Number: 29/433,314
Type: Grant
Filed: Sep 28, 2012
Date of Patent: Apr 30, 2013
Inventor: Chiu Chan (Kowloon)
Primary Examiner: Austin Murphy
Application Number: 29/433,314
Classifications