Inventor · disambiguated record

Lennart J. F. Frisk

Also filed as: FRISK LENNART J

1 granted patent·18 citations·filing 1978–1978

39Inventor score

Technology areasA63B

Files withTRETORN AB1

Top patents by PatentIndex Score

1 record

0141US4249730ATennis ball comprising a hollow sphere of a rubber containing fillerTRETORN AB·Filed 1978·Granted Feb 10, 1981·18 cites·2 claims

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