FR544178A - Perfectionnements apportés ou relatifs aux appareils destinés à indiquer les défauts d'allumage dans les moteurs à combustion interne
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Perfectionnements apportés ou relatifs aux appareils destinés à indiquer les défauts d'allumage dans les moteurs à combustion interne
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G01L23/00—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid
G01L23/02—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid mechanically indicating or recording and involving loaded or return springs
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FR544178D1920-12-081921-12-03Perfectionnements apportés ou relatifs aux appareils destinés à indiquer les défauts d'allumage dans les moteurs à combustion interne
ExpiredFR544178A
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