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The ornamental design for a portable learning unit, as shown and described. |
FIG. 1 is a perspective view of the preferred embodiment of a portable learning unit showing a portion of the front, left side and top thereof;
FIG. 2 is an enlarged right side view thereof;
FIG. 3 is a rearward perspective view showing a portion of the rear, right side and top thereof;
FIG. 4 is a top view thereof;
FIG. 5 is a frontal view thereof;
FIG. 6 is a rear view thereof;
FIG. 7 is a frontal view of a portable learning unit in accordance with a modification of the present design;
FIG. 8 is a perspective view of the modification illustrated in FIG. 7 showing a portion of the front, left side and top thereof; and,
FIG. 9 is a perspective view as in FIGS. 1 and 8 showing the portable learning unit in a closed position.
The bottom of both embodiments is plain and unornamented.
The right side, rear and rearward perspective views of the embodiment shown in FIGS. 7 and 8, are the same as shown in FIGS. 2, 6 and 3, respectively.
The top of the embodiment shown in FIGS. 7 and 8 is the same as that shown in FIG. 4, except that the keyboard and telephone set shown in FIG. 4 are not present in a top view of embodiment shown in FIGS. 7 and 8.
The left side of both embodiments is a mirror image of FIG. 2.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Apr 27 1977 | Control Data Corporation | (assignment on the face of the patent) | / | |||
Sep 20 1989 | CONTROL DATA CORPORATON | TEG AQUISITION CORPORATION, A CORP OF DE | ASSIGNMENT OF ASSIGNORS INTEREST | 005161 | /0496 | |
Oct 19 1989 | TEG ACQUISITION CORP | ROACH ORGANIZATION, INC , THE | CHANGE OF NAME SEE DOCUMENT FOR DETAILS EFFECTIVE DATE: 10-20-89, DELAWARE | 005250 | /0325 |
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