Vacuum flask

Details Vacuum flask Vacuum flask

2006-12-26

2006-12-26

Wallace, Terry A. (Department: 2916)

Compound tools

Cutter combined with other tool or tools

Design Patent

active

D0534027

CLAIM:
The ornamental design for a vacuum flask, as shown and described.

REFERENCES:
patent: D201839 (1965-08-01), Erkers
patent: D217734 (1970-06-01), Abramson et al.
patent: D287805 (1987-01-01), Zimmermann
patent: 4768664 (1988-09-01), Zimmermann
patent: D363409 (1995-10-01), Huang
patent: D394982 (1998-06-01), Huang

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