Respiratory face mask

The ornamental design for a respiratory face mask, as shown and described.

FIG. 1 is a perspective view of a respiratory face mask in accordance with the invention;

FIG. 2 is a side elevation view thereof the opposite side elevation view is identical to that shown in FIG. 2;

FIG. 3 is a bottom plan view thereof; and,

FIG. 4 is a top elevation view thereof.

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Executed on	Assignor	Assignee	Conveyance	Frame	Reel	Doc
Mar 25 1994		AB Astra	(assignment on the face of the patent)
May 16 1994	KARLSSON, JAN	AB Astra	ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS	007021	0772	pdf
May 16 1994	WIDERSTROM, CARIN	AB Astra	ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS	007021	0772	pdf

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