Electric vacuum cleaner

Details Electric vacuum cleaner Electric vacuum cleaner

1997-12-09

2000-04-11

McInroy, Ruth

Washing, cleaning, or drying machine

Washing, cleaning, or drying machine

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

1505

Patent

active

D04227638

REFERENCES:
patent: D144558 (1946-04-01), Grohs
patent: D167003 (1952-06-01), Russell
patent: D174495 (1955-09-01), Conord
patent: D174857 (1955-10-01), Ryden
patent: D276944 (1984-12-01), Parker et al.
patent: D312902 (1990-12-01), Essex et al.
patent: D355283 (1995-02-01), Thomas et al.
patent: D374522 (1996-10-01), Fan et al.
Hoover's "Twist & Vac" (advertisement 1996).
Bissell's "Model 3036 and 3037" (advertisement 1996).
Royal's "Model 533" (advertisement 1996).
Royal's "Model 513" (advertisement 1996).

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