G01D 15/04
Acting to punch holes in the recording surface
Official title: acting to punch holes in the recording surface
G01D15/04 (Acting to punch holes in the recording surface) appears on 3 US grants and 0 published applications in this corpus.
Search patents in G01D- Granted patents
- 3
- Published applications
- 0
- Assignees
- 2
- Inventors
- 3
- Latest grant
- 24 May 1988
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
No published applications in this class yet.
Most cited
By later US patents