发明授权
US4845793A Dual vacuum cleaner 失效
双吸尘器

Dual vacuum cleaner
摘要:
A dual vacuum cleaner is disclosed which includes generally a power unit, a small tank, and a large tank. The power unit includes a motor and an impeller, and is complementary to an access opening of the small tank and also complementary to an access opening of the large tank. The power unit may be fastened to either the small tank or the large tank for selective operation as a small portable vacuum cleaner or as a large wheeled tank-type vacuum cleaner.
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