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The ornamental design for a coupling of at least two tubes or rods connected thereby, as shown and described. |
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FIG. 1 is a top, front perspective view of a coupling showing my new design;
FIG. 2 is a bottom, rear perspective view thereof.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Sep 27 1979 | Opto-System AB | (assignment on the face of the patent) | / | |||
| Sep 22 1983 | OTTO SYSTEM AB | OPTO SYSTEMS LTD A UNITED KINGDOM CO | ASSIGNMENT OF ASSIGNORS INTEREST | 004178 | /0337 |
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