PTO
Wrapper
PDF
|
Dossier
Espace
Google
|
|
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
Date |
Maintenance Fee Events |
n/a
Date |
Maintenance Schedule |
n/a