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Publication numberUSD253721 S
Publication typeGrant
Application numberUS 05/818,729
Publication dateDec 18, 1979
Filing dateJul 25, 1977
Priority dateJan 28, 1977
Publication number05818729, 818729, US D253721 S, US D253721S, US-S-D253721, USD253721 S, USD253721S
InventorsSten G. Gibeck
Original AssigneeLouis Gibeck Ab
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Moisture and heat exchanger for respiratory apparatus
US D253721 S
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  1. 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.

Non-Patent Citations
1Anchor Coupling Co. Inc., catalog No. 404, 1963, p. 48, "O" Ring Weld Fitting.
U.S. ClassificationD24/164, D24/162, D23/209, D24/110