USD330152SExpiredUtility

Portable electric screw driver

82
Assignee: HITACHI KOKI KKPriority: Oct 20, 1989Filed: Apr 18, 1990Granted: Oct 13, 1992
Est. expiryOct 20, 2009(expired)· nominal 20-yr term from priority
Inventors:Yasunori OgawaYuichi SatoAtsushi Nakagawa
82
PatentIndex Score
23
Cited by
3
References
1
Claims

Claims

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

Cited by (0)

No later patents cite this yet.

References (0)

No backward citations on record.