The ornamental design for a oxygencylinderbracket, as shown and described.
FIG. 1 is a front perspective view of the oxygen cylinder bracket of the
present invention showing my new design with the phantom lines depicting
solely environmental structure and forming no portion of the claimed
design;
FIG. 2 is an enlarged partial perspective view of the clamp portion of FIG.
1; and,
FIG. 3 is an enlarged partial perspective view of FIG. 2 taken from the
opposite side.