Patent FR-1899-285841

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To understand the tech, see Aneroid barometer.

  • Inventor location:

Sources

  • L'Aerophile, Sep 1899, p108
  • Not on espacenet yet


Year filed 1899
Year granted 1899
Office FR
Patent number 285841
Inventors Watkin
Inventor country
Applicant person
Applicant firm
Applicant type INDIV
Applicant is inventor? 1
Original title Perfectionnements dans les baromètres anéroides
English title Improvements in aneroid barometers
Tech fields instrument, barometer, aneroid barometer
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Grant date 1899-02-13
Granted? 1
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Supplementary to patent
Related to aircraft? 1
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Family year 1899
First filing? 1
Cites these patents
Citations from after 1930
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