Page values for "Patent CA-1881-13781"
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"Patents" values
1 row is stored for this page| Field | Field type | Allowed values | Value |
|---|---|---|---|
| Year_filed | Date | 1881 | |
| Year_granted | Date | 1882 | |
| Office | Page | CA | |
| Patent_number | String | 13781 | |
| Inventors | List of Page, delimiter: ; | Comte Antoine Apraxine | |
| Inventor_country | List of Page, delimiter: ; | RU | |
| Applicant_person | List of Page, delimiter: ; | Comte Antoine Apraxine | |
| Applicant_type | List of String, delimiter: ; | INDIV | |
| Applicant_is_inventor | Boolean | Yes | |
| Original_title | String | Improvements in Aerial Balloons; Perfectionnements dans les ballons | |
| English_title | String | Improvements in Aerial Balloons | |
| Tech_fields | List of Page, delimiter: ; | LTA • Balloon • Aerostat | |
| Filing_date | Date | May 1880 | |
| Grant_date | Date | 1881-12-02 | |
| Granted | Boolean | Yes | |
| Related_to_aircraft | String | Yes · Partially · No | 1 |
| National_tech_categories | List of Page, delimiter: ; | CA 244/28 | |
| Number_of_claims | Integer | 5 |
