Patent
   D325857
Priority
Jun 10 1988
Filed
May 19 1989
Issued
May 05 1992
Expiry
May 05 2006
Assg.orig
Entity
unknown
32
3
n/a
The ornamental design for a screw driver, as shown and described.

FIG. 1 is a front, top and right-side perspective view of a screw driver showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a right side elevational view of the opposite side being a mirror image thereof.

Hagura, Shigehisa, Hasegawa, Hideaki, Tuburaya, Kazuyuki, Tashimo, Fumio

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Executed onAssignorAssigneeConveyanceFrameReelDoc
May 15 1989HASEGAWA, HIDEAKIHitachi Koki Company, LimitedASSIGNMENT OF ASSIGNORS INTEREST 0051150363 pdf
May 15 1989TASHIMO, FUMIOHitachi Koki Company, LimitedASSIGNMENT OF ASSIGNORS INTEREST 0051150363 pdf
May 15 1989HAGURA, SHIGEHISAHitachi Koki Company, LimitedASSIGNMENT OF ASSIGNORS INTEREST 0051150363 pdf
May 15 1989TUBURAYA, KAZUYUKIHitachi Koki Company, LimitedASSIGNMENT OF ASSIGNORS INTEREST 0051150363 pdf
May 19 1989Hitachi Koki Company, Limited(assignment on the face of the patent)
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