Patent · US Expired

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USD321172S · kind S · design

52Cited by
16References
1Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 16, 1989
Grant dateOct 29, 1991
Priority date
Expiry dateOct 29, 2005

Classification

  • Technology area (CPC —)General

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