Patent · US Expired

Follower block for a card file

USD254014S · kind S · design

1Cited by
5References
1Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 1, 1977
Grant dateJan 22, 1980
Priority date
Expiry dateJan 22, 1994

Classification

  • Technology area (CPC —)General

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