Patent US-1908-888520
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- CPC B63H16/105 Other apparatus for converting muscle power into propulsive effort for bow-facing rowing by using an inverting mechanism between the handgrip and the blade, e.g. a toothed transmission the mechanism having articulated rods
- Inventor location: Waterloo, Iowa, US
This patent identified because google patents said it was related to another patent, on propellers.
Sources
- Patent 888520 document and bibliographic info on espacenet
- Patent 888520 at google patents
Year filed | 1907 |
---|---|
Year granted | 1908 |
Office | US |
Patent number | 888520 |
Inventors | David F. Merriman, Robert L. Apfel |
Inventor country | US, US |
Applicant person | David F. Merriman, Robert L. Apfel |
Applicant firm | |
Applicant type | INDIV |
Applicant is inventor? | Yes |
Original title | Pivoted oar |
English title | Pivoted oar |
Tech fields | marine, flapping, transmission |
Filing date | July 18, 1907 |
Full specification filed date | |
Application number | |
Grant date | May 26, 1908 |
Granted? | Yes |
Publication date | |
Supplementary to patent | |
Related to aircraft? | Yes |
Serial number | 384448 |
Patent agent | |
Assigned to | |
National tech categories | USPC 440/102 |
IPCs | IPC B63H16/10, IPC B63H16/00 |
CPCs | CPC B63H16/105 |
Family year | 1907 |
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 | 6 |
Number of claims | 3 |