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The ornamental design for a magnetic recording disk cartridge, as shown and described. |
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FIG. 1 is a top, front, right side perspective view of a magnetic recording disk cartridge showing our new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a back elevational view thereof;
FIG. 4 is a left side elevational view thereof, the right side elevational view being a mirror image;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof.
Koizumi, Osamu, Sakurai, Osamu, Leonard, Vurnen J., Kato, Arthur K.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Sep 20 1988 | KATO, ARTHUR K | MINNESOTA MINING AND MANUFACTURING COMPANY, A CORP OF DE | ASSIGNMENT OF ASSIGNORS INTEREST | 004981 | /0526 | |
| Sep 20 1988 | LEONARD, VURNEN J | MINNESOTA MINING AND MANUFACTURING COMPANY, A CORP OF DE | ASSIGNMENT OF ASSIGNORS INTEREST | 004981 | /0526 | |
| Sep 20 1988 | SAKURAI, OSAMU | MINNESOTA MINING AND MANUFACTURING COMPANY, A CORP OF DE | ASSIGNMENT OF ASSIGNORS INTEREST | 004981 | /0526 | |
| Sep 20 1988 | KOIZUMI, OSAMU | MINNESOTA MINING AND MANUFACTURING COMPANY, A CORP OF DE | ASSIGNMENT OF ASSIGNORS INTEREST | 004981 | /0526 | |
| Sep 20 1988 | KATO, ARTHUR K | Sony Corporation | ASSIGNMENT OF ASSIGNORS INTEREST | 004981 | /0526 | |
| Sep 20 1988 | LEONARD, VURNEN J | Sony Corporation | ASSIGNMENT OF ASSIGNORS INTEREST | 004981 | /0526 | |
| Sep 20 1988 | SAKURAI, OSAMU | Sony Corporation | ASSIGNMENT OF ASSIGNORS INTEREST | 004981 | /0526 | |
| Sep 20 1988 | KOIZUMI, OSAMU | Sony Corporation | ASSIGNMENT OF ASSIGNORS INTEREST | 004981 | /0526 | |
| Dec 02 1988 | Minnesota Mining and Manufacturing Company | (assignment on the face of the patent) | / |
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