Lowe, Price, LeBlanc & Becker
Structure of double-blade wind shieldwiper with arm to blade connectors
 A double-blade wind shield wiper, the blade assembly of which comprising a frame assembly for holding two parallel wiper blades. The frame assembly includes a main frame at the middle, two end frames at two opposite ends and two intermediate frames set therebetween which are respectively connected into shape by conning pins and spring plates. The frame assembly has vent holes and bevel strips for guiding air stream to force wiper blades to firmly attach to wind shield glass. An adapter is fastened in frame assembly to match with a connector for connecting the blade assembly to a wiper drive arm. 
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Chang S. Y.
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