Patent · US Expired

Combination hole punch and electronic unit

USD397359S · kind S · design

8Cited by
13References
1Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 14, 1997
Grant dateAug 25, 1998
Priority date
Expiry dateAug 25, 2012

Classification

  • Technology area (CPC —)General

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