Electric vacuum cleaner

Details Electric vacuum cleaner Electric vacuum cleaner

2000-12-06

2001-11-27

McInroy, Ruth (Department: 2914)

Washing, cleaning, or drying machine

Washing, cleaning, or drying machine

Surface treatment, e.g., floor, street, etc.

Design Patent

active

D0451252

CLAIM:
The ornamental design for an electric vacuum cleaner, as shown and described.

REFERENCES:
patent: D. 175857 (1955-10-01), Ryden
patent: D. 208529 (1967-09-01), Schoettler
patent: D. 355283 (1995-02-01), Thomas et al.
patent: D. 399616 (1998-10-01), Bobrosky et al.
patent: D. 422763 (2000-04-01), Tsuda
patent: D. 432746 (2000-10-01), Frey
patent: 6145160 (2000-11-01), Buss et al.

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