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The ornamental design for a recessed spiral spline seat male pipe coupling, as shown and described.
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FIG. 1 is a top elevational view of a recessed spiral spline seat male pipe coupling showing my new ornamental design having a spiral spline seat recessed from the tapered end of the male pipe coupling providing a smooth gasket sealing surface;
FIG. 2 is a top projection view thereof showing the recessed spiral spline seat seat;
FIG. 3 is a left side elevational view thereof;
FIG. 4 is a back elevational view thereof;
FIG. 5 is a right side elevational view thereof;
FIG. 6 is a front elevational view thereof;
FIG. 7 is a bottom elevational view thereof; and,
FIG. 8 is a bottom perspective view thereof.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Dec 05 2002 | PipeLife Jet Stream, Inc. | (assignment on the face of the patent) | / | |||
Feb 14 2003 | FILER, JOHN T | PIPELIFE JET STREAM, INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 013792 | /0365 |
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