Patent · US Expired

Access identification apparatus

US4333328A · kind A · utility

7Cited by
16References
26Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMay 2, 1980
Grant dateJun 8, 1982
Priority date
Expiry dateMay 2, 2000

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T70/7079
  • WIPO fieldCivil engineering
  • WIPO sectorOther fields

Abstract

Access identification apparatus which includes key operated switch actuating plates with exterior tangs that rock in one rotary direction to rock switch actuating elements in the opposite angular direction.

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