Patent NL-1918-10011
This patent may or may not actually have another patent number. The link from the Netherlands Patent Office register to Espacenet leads to "An error has occurred - not found". As often in these cases, a Dutch patent with this number is to be found by way of Espacenet, but it does not comport with the data we have here. Applying our own protocol Original patent document and bibliography entry on espacenet, using this patent number, does not lead to the above Espacenet error page, but it does lead to another patent, a non-aero-patent.
This is another case in which the data gives a registration date which is the same as the publication date. "Lapsed date", 1919-07-01, is another matter. This may or may not be the date granted. In the case of this patent, no date granted, as such, is shown in the data.
Sources
- Patent record in Netherlands Patent Office register
- Inventor location: Rotterdam
- Patent agent location(s): The Hague
| Year filed | 1918 |
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| Year granted | |
| Office | NL |
| Patent number | |
| Inventors | Wilhelmus Adrianus van Berkel |
| Inventor country | NL |
| Inventor location | |
| Applicant person | |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | 1 |
| Original title | Inrichting tot het geven van een wentelende beweging aan den loop van mitrailleurs, hoofdzakelijk bij vliegtuigen |
| English title | Apparatus for imparting a revolving motion to the barrel of machine guns, mainly in aircraft |
| Tech fields | military, subsystem |
| Filing date | 1918-06-14 |
| Full specification filed date | |
| Application number | |
| Grant date | |
| Granted? | |
| Publication date | 1918-12-02 |
| Supplementary to patent | |
| Related to aircraft? | 1 |
| Serial number | |
| Patent agent | Ir. A.J. van der Poest Clement |
| Assigned to | |
| National tech categories | NL 62 |
| IPCs | |
| CPCs | |
| Family year | 1918 |
| First filing? | 1 |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | |
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