Patent · US Expired

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USD256679S · kind S · design

7Cited by
6References
1Claims
0Family size

Inventors

Key dates

Filing dateOct 25, 1978
Grant dateSep 2, 1980
Priority date
Expiry dateSep 2, 1994

Classification

  • Technology area (CPC —)General

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