USD405335SExpiredUtility

Screw driver

94
Assignee: LIN CHANG-MINGPriority: Feb 18, 1998Filed: Feb 18, 1998Granted: Feb 9, 1999
Est. expiryFeb 18, 2018(expired)· nominal 20-yr term from priority
Inventors:Chang-Ming Lin
94
PatentIndex Score
64
Cited by
9
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a screw driver, as shown.

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