Patent US-1880-228845

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This patent identified because google patents said it was related to another patent, on propellers.

  • Tech classifications: CPC A63B22/0076 Rowing machines for conditioning the cardio-vascular system
  • Inventor location: San Francisco
  • Assignee location: San Francisco

Sources


Year filed 1879
Year granted 1880
Office US
Patent number 228845
Inventors John Franklin Walthour
Inventor country US
Applicant person John Franklin Walthour
Applicant firm
Applicant type INDIV
Applicant is inventor? 1
Original title Improvement in Rowing-Machines
English title Improvement in rowing machines
Tech fields
Filing date 1879-08-16
Full specification filed date
Application number
Grant date 1880-06-15
Granted? 1
Publication date
Supplementary to patent
Related to aircraft? -1
Serial number
Patent agent
Assigned to Walter H. Chenery
National tech categories USPC 482/72
IPCs IPC A63B69/06
CPCs CPC A63B22/0076
Family year 1879
First filing? 1
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 4
Number of claims 3