D03C 15/04
Cards or paper perforated to indicate pattern
D03C15/04 (Cards or paper perforated to indicate pattern) appears on 1 US grants and 0 published applications in this corpus.
Search patents in D03C- Granted patents
- 1
- Published applications
- 0
- Assignees
- 1
- Inventors
- 1
- Latest grant
- 30 Oct 1979
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
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