Patent AT-1902-6911
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(Although this device has applications within other contexts, such as mining, the "Luft" context is specifically mentioned at the end of the above original.)
- Inventor location: Oberaltstadt near Trautenau (Böhmen)
- Inventor occupation:
| Year filed | 1901 |
|---|---|
| Year granted | 1901 |
| Office | AT |
| Patent number | 6911 |
| Inventors | Ignaz Etrich |
| Inventor country | AT |
| Applicant person | Ignaz Etrich |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | Yes |
| Original title | Athmungshelm |
| English title | Helmet facilitating respiration |
| Tech fields | |
| Filing date | June 13, 1901 |
| Full specification filed date | |
| Application number | ATD6911 |
| Grant date | October 15, 1901 |
| Granted? | Yes |
| Publication date | March 10, 1902 |
| Supplementary to patent | |
| Related to aircraft? | Yes |
| Serial number | |
| Patent agent | |
| Assigned to | |
| National tech categories | AT 30 |
| IPCs | |
| CPCs | |
| Family year | |
| First filing? | No |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | |
| INPADOC family ID | |
| Number of text pages | 3 |
| Number of diagram pages | 1 |
| Number of figures | 4 |
| Number of claims | 2 |
