¶ Since the late 1930's plaintiff Fred M. Waring (plaintiff) has owned a patent for a kitchen blender, which bears United States patent number 2,109,501 and which is described in the Patent Office application as a "Disintegrating Mixer for Producing Fluent Substances". This blender is primarily intended to mix drinks and to liquify fruits and vegetables. It operates by "disintegrating, mixing and aerating various solid and fluent substances to produce a homogenous and...
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