Cathode ray oscillograph and its application to engine indicators
Recent developments in engine indicators
Rose indicator for study of combustion in internal combustion engines
The Dobbie-McInnes "Farnboro" indicator
Japanese scientists develop simple optical indicator
Rose indicator for study of combustion in internal combustion engines
Electric indicator for high speed automotive diesel engines
Electric indicator for high speed automotive Diesel engines
Electric indicator for high speed automotive diesel engines
Valuation and tests of electrical engine-indicators
Valuation and testing of electric engine indicators