Patent DE-1908-227004
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- Inventor location: Grunewald
"Grunewald is a locality (Ortsteil) within the Berlin borough (Bezirk) of Charlottenburg-Wilmersdorf."[1]
- From DPMA, tech classes: CPC B64C11/006; IPC B64C11/16
Sources
References
- Patent record at Lilienthal museum patents
- Original patent document and Bibliographic info at DPMA
- Original patent document and bibliography entry at espacenet
Year filed | 1908 |
---|---|
Year granted | 1910 |
Office | DE |
Patent number | 227004 |
Inventors | Hermann Ruthenberg |
Inventor country | DE |
Applicant person | Hermann Ruthenberg |
Applicant firm | |
Applicant type | INDIV |
Applicant is inventor? | Yes |
Original title | Luftschrauben die mit ringartigen Kränzen versehen sind |
English title | Propellers with with ring-like wreaths |
Tech fields | |
Filing date | 1908-04-08 |
Full specification filed date | |
Application number | |
Grant date | 1910-10-13 |
Granted? | Yes |
Publication date | |
Supplementary to patent | |
Related to aircraft? | Yes |
Serial number | |
Patent agent | |
Assigned to | |
National tech categories | DE 77h.6 |
IPCs | IPC B64C11/00 |
CPCs | CPC B64C11/006 |
Family year | 1908 |
First filing? | Yes |
Cites these patents | |
Citations from after 1930 | |
Application ID | |
INPADOC family ID | |
Number of text pages | 2 |
Number of diagram pages | 1 |
Number of figures | 2 |
Number of claims | 2 |