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The ornamental design for a pneumatic headset, substantially as shown. |
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FIG. 1 is a front view of a pneumatic headset embodying the present invention;
FIG. 2 is a back view of a pneumatic headset embodyng the present invention;
FIG. 3 is a left side view of a pneumatic headset embodying the present invention;
FIG. 4 is a right side view of a pneumatic headset embodying the present invention;
FIG. 5 is a top view of a pneumatic headset embodying the invention; and
FIG. 6 is a bottom view of a pneumatic headset embodying the invention.
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