Nitrogen extractor

Details Nitrogen extractor Nitrogen extractor

2007-11-06

2007-11-06

Davis, Antoine D. (Department: 2915)

Measuring, testing, or signalling instruments

Measuring, regulating or indicating instrument, or casing

Chemical

Design Patent

active

29234297

CLAIM:
The ornamental design for a nitrogen extractor, as shown and described.

REFERENCES:
patent: 5224350 (1993-07-01), Mehra
patent: 5599398 (1997-02-01), Lenglen
patent: 2005/0095177 (2005-05-01), Golner et al.
patent: 2005/0247311 (2005-11-01), Vacchiano et al.

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