Patent
   D253115
Priority
Dec 05 1977
Filed
Dec 05 1977
Issued
Oct 09 1979
Expiry
Oct 09 1993
Assg.orig
Entity
unknown
1
3
n/a
The ornamental design for a metric converter slide rule, substantially as shown and described.

FIG. 1 is a front elevational view of a metric converter slide rule showing my new design;

FIG. 2 is a top edge view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a bottom edge view thereof; and

FIG. 5 is an end view thereof both ends being the same.

Hackemann, William

Patent Priority Assignee Title
D655335, May 13 2010 The United States of America as represented by the Director, National Security Agency Time neutral financial analysis tool
Patent Priority Assignee Title
1875927,
196069,
FR816969,
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Dec 05 1977Hasbro Industries, Inc.(assignment on the face of the patent)
Sep 29 1980HASBRO INDUSTRIES, INC EMPIRE ENTERPRISES, INC ASSIGNMENT OF ASSIGNORS INTEREST 0038410066 pdf
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