![]() Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US06/698,189 Inventor Siegfried Kuebler Original Assignee Siegfried Kuebler Priority date (The priority date is an assumption and is not a legal conclusion. Google Patents Racket having thickened shaft portionÄownload PDF Info Publication number US4664380A US4664380A US06/698,189 US69818985A US4664380A US 4664380 A US4664380 A US 4664380A US 69818985 A US69818985 A US 69818985A US 4664380 A US4664380 A US 4664380A Authority US United States Prior art keywords racket frame handle stringing height Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. ![]() Google Patents US4664380A - Racket having thickened shaft portion ![]() US4664380A - Racket having thickened shaft portion
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