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The ornamental design for an oil heater, as shown and described. |
FIG. 1 is a front, top and right side perspective view of an oil heater showing our new design;
FIG. 2 is a rear, bottom and left side perspective view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a right side elevational view thereof;
FIG. 5 is a front, top and right side perspective view of a second embodiment of the oil heater showing our new design;
FIG. 6 is a rear, bottom and left side perspective view thereof;
FIG. 7 is a top plan view thereof; and
FIG. 8 is a right side elevational view thereof.
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Patent | Priority | Assignee | Title |
Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Jul 19 1984 | MASE, NOBUYUKI | MATSUSHITA ELECTRIC INDUSTRIAL CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST | 004460 | /0764 | |
Jul 19 1984 | MORI, DAISAKU | MATSUSHITA ELECTRIC INDUSTRIAL CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST | 004460 | /0764 | |
Aug 08 1984 | Matsushita Electric Industrial Co., Ltd. | (assignment on the face of the patent) | / |
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