Patent · US Expired

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USD331136S · kind S · design

4Cited by
4References
1Claims
0Family size

Inventors

Key dates

Filing dateJul 10, 1990
Grant dateNov 17, 1992
Priority date
Expiry dateNov 17, 2006

Classification

  • Technology area (CPC —)General

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.