Automatic venetian blind opener and closer

Details Automatic venetian blind opener and closer Automatic venetian blind opener and closer

1991-12-05

1994-03-29

Douglas, Alan P.

Furnishings

Window covering

Element or attachment

Patent

active

D03454835

REFERENCES:
patent: D277062 (1985-01-01), Brolin
patent: D291395 (1987-08-01), Hennequin
patent: 4635698 (1987-01-01), Anderson
patent: 4799527 (1989-01-01), Villoch
patent: 4813469 (1989-03-01), Scott
patent: 4834162 (1989-05-01), John
patent: 4844139 (1989-07-01), John
patent: 4914360 (1990-04-01), Hsieh et al.
patent: 4945970 (1990-08-01), Marocco

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