Moisture and heat exchanger for respiratory apparatus

The ornamental design for moisture and heat exchanger for respiratory apparatus, as shown and described.

FIG. 1 is a perspective view of a moisture and heat exchanger for respiratory apparatus showing my new design; and

FIG. 2 is a side elevation thereof.

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Executed on	Assignor	Assignee	Conveyance	Frame	Reel	Doc
Jul 25 1977		Louis Gibeck AB	(assignment on the face of the patent)

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