Vacuum flask

Details Vacuum flask Vacuum flask

1998-06-16

2001-11-20

Wallace, Terry A. (Department: 2912)

Compound tools

Cutter combined with other tool or tools

Design Patent

active

D0450541

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

REFERENCES:
patent: D. 195598 (1963-07-01), Bernadotta
patent: D. 218354 (1970-08-01), Kikuchi
patent: D. 326791 (1992-06-01), Rixen
patent: D. 343983 (1994-02-01), Tardif
patent: D. 415934 (1999-11-01), Wallays

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