Dust-collecting machine

Details Dust-collecting machine Dust-collecting machine

2005-02-22

2005-02-22

McInroy, Ruth (Department: 2914)

Washing, cleaning, or drying machine

Washing, cleaning, or drying machine

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

Design Patent

active

D0502297

CLAIM:
I claim the ornamental design for a dust-collecting machine, as shown and described.

REFERENCES:
patent: D289096 (1987-03-01), Larsen
patent: 4715872 (1987-12-01), Snyder
patent: 5163985 (1992-11-01), Chen
patent: 5169420 (1992-12-01), Chen
patent: D357094 (1995-04-01), Lin
patent: D357095 (1995-04-01), Lin
patent: D358234 (1995-05-01), Lin
patent: 6221135 (2001-04-01), Wirth et al.
patent: 6507974 (2003-01-01), Cheng
patent: 20040035092 (2004-02-01), Wang

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