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


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