Page values for "Patent HU-1917-77894"
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"Patents" values
1 row is stored for this page| Field | Field type | Allowed values | Value |
|---|---|---|---|
| Year_filed | Date | 1917 | |
| Year_granted | Date | 1920 | |
| Office | Page | HU | |
| Patent_number | String | 77894 | |
| Inventor_country | List of Page, delimiter: ; | DE | |
| Applicant_firm | List of Page, delimiter: ; | Siemens & Halske Aktiengesellshaft | |
| Applicant_type | List of String, delimiter: ; | COMPANY | |
| Original_title | String | Négyszárnyú fapropeller | |
| English_title | String | Four-winged woodpropeller, likely a four-bladed propeller made of wood | |
| Tech_fields | List of Page, delimiter: ; | Propellers • Airplane • Wood | |
| Filing_date | Date | 1917-10-06 | |
| Grant_date | Date | 1920-10-15 | |
| Granted | Boolean | Yes | |
| Publication_date | Date | 1921-04-30 | |
| Supplementary_to_patent | List of Page, delimiter: ; | Patent 1917-01-19 Siemens & Halske A.-G. | |
| Related_to_aircraft | String | Yes · Partially · No | Yes |
| National_tech_categories | List of Page, delimiter: ; | HU V/h | |
| Family_year | Date | 1917 | |
| First_filing | Boolean | No |
