Precious stone testing apparatus

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Description

FIG. 1 is a perspective view of precious stone testing apparatus showing my new design.

FIG. 2 is a left view thereof.

FIG. 3 is a right view thereof.

FIG. 4 is a front end view thereof.

FIG. 5 is a rear view thereof.

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

Claims

The ornamental design for a precious stone testing apparatus, as shown and described.

Referenced Cited
U.S. Patent Documents
6043742 March 28, 2000 Austin
8564316 October 22, 2013 Kessler et al.
8947111 February 3, 2015 Zhu et al.
Patent History
Patent number: D732987
Type: Grant
Filed: Feb 24, 2014
Date of Patent: Jun 30, 2015
Inventors: Xiu Ling Zhu (Shenzhen), Gary Bruce Peckham (Shenzhen)
Primary Examiner: Antoine D Davis
Application Number: 29/483,007