Patent · US Expired

Combined change tray and portable calculator support

USD254944S · kind S · design

14Cited by
6References
1Claims
0Family size

Inventors

Key dates

Filing dateOct 27, 1977
Grant dateMay 13, 1980
Priority date
Expiry dateMay 13, 1994

Classification

  • Technology area (CPC —)General

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