Back support
Description
Claims
The ornamental design for a back support, as shown.
Referenced Cited
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Patent History
Patent number: D633622
Type: Grant
Filed: Jul 23, 2010
Date of Patent: Mar 1, 2011
Inventor: Pang-Ching Chiang (Taipei)
Primary Examiner: Susan E Krakower
Attorney: patenttm. us
Application Number: 29/366,414
Type: Grant
Filed: Jul 23, 2010
Date of Patent: Mar 1, 2011
Inventor: Pang-Ching Chiang (Taipei)
Primary Examiner: Susan E Krakower
Attorney: patenttm. us
Application Number: 29/366,414
Classifications