Tube expander
Description
Claims
The ornamental design for a “tube expander,” as shown and described.
Referenced Cited
U.S. Patent Documents
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Patent History
Patent number: D734431
Type: Grant
Filed: Jul 25, 2014
Date of Patent: Jul 14, 2015
Assignee: CHAMP-AIR REFRIGERATION HARDWARE CO., LTD. (Taichung)
Inventor: Hui-Chen Chen (Taichung)
Primary Examiner: Cynthia Ramirez
Application Number: 29/497,632
Type: Grant
Filed: Jul 25, 2014
Date of Patent: Jul 14, 2015
Assignee: CHAMP-AIR REFRIGERATION HARDWARE CO., LTD. (Taichung)
Inventor: Hui-Chen Chen (Taichung)
Primary Examiner: Cynthia Ramirez
Application Number: 29/497,632
Classifications
Current U.S. Class:
Valve Or Body Therefor (D23/233)