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The ornamental design for a portable oxygen supply apparatus, as shown and described.
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FIG. 1 is a front, top and left side perspective view of a portable oxygen supply apparatus, showing my new design;
FIG. 2 is a rear bottom and right side perspective view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a right side elevational view thereof;
FIG. 6 is a front side elevational view thereof; and,
FIG. 7 is a rear side elevational view thereof.
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| Aug 15 2001 | MCCOMBS, NORMAN R | AirSep Corporation | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 012109 | /0062 | |
| Aug 16 2001 | AirSep Corporation | (assignment on the face of the patent) | / | |||
| Nov 30 2012 | AirSep Corporation | JPMORGAN CHASE BANK, N A , AS ADMINISTRATIVE AGENT | SECURITY AGREEMENT | 029405 | /0132 | |
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