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Bolt or nut tightening device

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Assignee: MAEDA METAL INDPriority: Dec 3, 2009Filed: Jun 1, 2010Granted: Jun 14, 2011
Est. expiryDec 3, 2029(~3.4 yrs left)· nominal 20-yr term from priority
Inventors:Yukio TorigaiKenichi Tachiiri
50
PatentIndex Score
10
Cited by
10
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for bolt or nut tightening device, substantially as shown and described.

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