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The ornamental design for a device for positioning dental x-ray film, as shown and described. |
FIG. 1 is a perspective view of the device for positioning dental x-ray film showing our new design.
FIG. 2 is a plan view thereof;
FIG. 3 is a right side elevational view thereof;
FIG. 4 is a bottom view thereof;
FIG. 5 is a left side elevational view thereof;
FIG. 6 is a front view thereof; and
FIG. 7 is a rear view thereof.
Maldonado, Robert, Loughry, Clark E.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Mar 03 1983 | MALDONADO, ROBERT | PENNWALT CORPORATION, A CORP OF PA | ASSIGNMENT OF ASSIGNORS INTEREST | 004111 | /0744 | |
Mar 03 1983 | LOUGHRY, CLARK E | PENNWALT CORPORATION, A CORP OF PA | ASSIGNMENT OF ASSIGNORS INTEREST | 004111 | /0744 | |
Mar 16 1983 | The S. S. White Company | (assignment on the face of the patent) | / | |||
Jul 15 1984 | PENNWALT CORPORATION A PA CORP | S S WHITE COMPANY, THE | ASSIGNMENT OF ASSIGNORS INTEREST | 004288 | /0006 | |
Mar 30 1988 | S S WHITE COMPANY, THE | KEYSTONE X-RAY, INC | ASSIGNMENT OF ASSIGNORS INTEREST | 005725 | /0001 |
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