04505480 is referenced by 5 patents and cites 6 patents.

The present invention relates to an improvement in racket frames reinforced with a honeycomb, characterized in that it comprises filling up at least one selected alveolus of the said honeycomb with a substance having a density of at least 2 kg/dm3.

Title
Tennis racket having alveoli filled honeycomb reinforcement
Application Number
6/477960
Publication Number
4505480
Application Date
March 23, 1983
Publication Date
March 19, 1985
Inventor
Jan E Vanhoutte
Brugge
BE
Agent
Bacon & Thomas
Assignee
Fabrique Nationale Herstal
BE
IPC
A63B 49/04
View Original Source