Patent
   D253289
Priority
Feb 24 1977
Filed
Jun 29 1977
Issued
Oct 30 1979
Expiry
Oct 30 1993
Assg.orig
Entity
unknown
28
2
n/a
The ornamental design for a control knob for audio apparatus, as shown and described.

FIG. 1 is front view of a control knob for audio apparatus showing my new design;

FIG. 2 is a left side elevational view;

FIG. 3 is a right side elevational view;

FIG. 4 is a top plan view;

FIG. 5 is a bottom plan view; and

FIG. 6 is a top, front and right side perspective view thereof.

FIG. 7 is a front and bottom perspective view; and

FIG. 8 is an enlarged front and partial top perspective view.

The characteristic features of my design are the configuration of the front groove and the texture of the outer-most band.

Kato, Akira

Patent Priority Assignee Title
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D972352, May 19 2021 CARBIDE AUDIO LLC Foot for audio equipment
Patent Priority Assignee Title
2573291,
186982,
/
Executed onAssignorAssigneeConveyanceFrameReelDoc
Jun 29 1977Sansui Electric Co., Ltd.(assignment on the face of the patent)
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