USD325857SExpiredUtility

Screw driver

89
Assignee: HITACHI KOKI KKPriority: Jun 10, 1988Filed: May 19, 1989Granted: May 5, 1992
Est. expiryJun 10, 2008(expired)· nominal 20-yr term from priority
Inventors:Hideaki HasegawaFumio TashimoShigehisa HaguraKazuyuki Tuburaya
89
PatentIndex Score
33
Cited by
2
References
1
Claims

Claims

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

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