Patent · US Expired

Relay machine for wireless telephone

USD317449S · kind S · design

12Cited by
11References
1Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 22, 1989
Grant dateJun 11, 1991
Priority date
Expiry dateJun 11, 2005

Classification

  • Technology area (CPC —)General

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