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in creator/contributor: "Seifert, John W."  
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Washing-Machine

Description: Patent for a Washing-Machine which includes a base, a rotary rubbing drum with a foraminous concave rubbing bed of flexible material on the lower portion of the drum. Adjustable springs attached to the rubbing drum vary the drawing tension of the flexible rubbing bed.
Date: April 5, 1921
Creator: Seifert, John W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Washing-Machine.

Description: Patent for a new and improved design of washing machines "which combines simplicity of construction with economy in operation" and helps "to minimize the opportunity for wear, breakage or derangement" (lines 30-35), including illustrations.
Date: September 21, 1920
Creator: Seifert, John W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Washing-Machine

Description: Patent for an improved clothes containing basket within washing machines that is longer-lasting and less likely to become imbalanced. The device increases agitation of clothes and water.
Date: April 19, 1921
Creator: Seifert, John W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Cotton Cleaner and Distributer.

Description: Patent for improvements on cotton cleaners and distributors, specifically means for pneumatically raising cotton, cleaning the dirt from said cotton, and releasing quantities of cotton collected in the distributor.
Date: September 17, 1901
Creator: Seifert, John W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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