Tracheostoma filter

Details Tracheostoma filter Tracheostoma filter

2001-06-11

2002-08-20

Reid, Stella (Department: 2914)

Medical and laboratory equipment

Equipment for diagnosis, analysis, or treatment

Filter

Design Patent

active

D0461896

CLAIM:
The ornamental design for a tracheostoma filter, as shown and described.

REFERENCES:
patent: 3920009 (1975-11-01), Olsen
patent: 4463757 (1984-08-01), Schmidt
patent: 5022394 (1991-06-01), Chmielinski
patent: 5666950 (1997-09-01), Smith
patent: 5738095 (1998-04-01), Persson
patent: 5848590 (1998-12-01), Smith

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