Muscular strengthening device
Description
Claims
The ornamental design for a muscular strengthening device, as shown and described.
Referenced Cited
U.S. Patent Documents
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Patent History
Patent number: D633157
Type: Grant
Filed: Jan 12, 2010
Date of Patent: Feb 22, 2011
Inventor: Adam C. Knapp (West Salem, OH)
Primary Examiner: Susan E Krakower
Attorney: Crossley Patent Law
Application Number: 29/353,637
Type: Grant
Filed: Jan 12, 2010
Date of Patent: Feb 22, 2011
Inventor: Adam C. Knapp (West Salem, OH)
Primary Examiner: Susan E Krakower
Attorney: Crossley Patent Law
Application Number: 29/353,637
Classifications
Current U.S. Class:
For Hand, Wrist, Or Finger Only (D21/684)