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United States Utility Patents
4,019,250 - 4,019,259

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NumberTitle
4,019,250 Methods of fabricating a connector with a perforable insulative liner
4,019,251 Flat battery and method of manufacture
4,019,252 Electric shaver
4,019,253 Means and method for producing custom artificial dentures
4,019,254 Endodontic operating instrument
4,019,255 Dental apparatus for cheek retraction and saliva collection
4,019,256 Guide for tool or instrument
4,019,257 Method and apparatus for developing a garment pattern
4,019,258 Device for attaching rollers to a carriage adapted to move along a rail
4,019,259 Automatic regulation of drying time in a clothes drying machine



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