Page values for "Patent FR-1871-91409"
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"Patents" values
1 row is stored for this page| Field | Field type | Allowed values | Value |
|---|---|---|---|
| Year_granted | Date | 1871 | |
| Office | Page | FR | |
| Patent_number | String | 91409 | |
| Inventors | List of Page, delimiter: ; | Maichain | |
| Inventor_country | List of Page, delimiter: ; | FR | |
| Original_title | String | hélice aérienne | |
| English_title | String | aerial blade | |
| Tech_fields | List of Page, delimiter: ; | Propulsion | |
| Filing_date | Date | 1871-01-12 | |
| Related_to_aircraft | String | Yes · Partially · No | Yes |
| National_tech_categories | List of Page, delimiter: ; | FR 5 |
