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Patent
D871364
Priority
Jul 12 2019
Filed
Jul 12 2019
Issued
Dec 31 2019
Expiry
Dec 31 2034
Assg.orig
Entity
unknown
12
20
n/a
The ornamental design for an audio amplifier , as shown and described.
FIG. 1 is an isometric view of the audio amplifier of the present invention;
FIG. 2 is a front view thereof;
FIG. 3 is a left-side view thereof;
FIG. 4 is a right-side view thereof; and,
FIG. 5 is a top plan view thereof.
Differently stippled areas on the front face and the knob fronts indicate different pastel color surfaces, and while shown intermittently is understood to be extended uniformly across the entire surface upon which it is applied.
Lundgard, Eric J.
Patent
Priority
Assignee
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GUANGZHOU RANTION TECHNOLOGY CO ,LTD ; DONNER TECHNOLOGY LLC
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AMBIT MICROSYSTEMS (SHANGHAI) LTD.
Industrial signal testing equipment for wireless devices
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