Found 6 records, showing 1 of 1 pages
1912:
Hasler Telegraph Works
Hasler Telegraph Works Engine Instruments For Aeroplanes
Rec. Num. 1 of 6
Source: Flight October 12th 1912
1913:
Hasler Telegraph Works
Hasler "TEL" Aero Engine Revolution Speed Indicators
Rec. Num. 2 of 6
Source: Flight June 7th 1913
1913:
Hasler Telegraph Works
Hasler "TEL" Aero Engine Revolution Speed Indicators
Rec. Num. 3 of 6
Source: Flight April 19th 1913
1914:
Hasler Telegraph Works
Hasler Telegraph Works Aero Engine RPM Indicator
Rec. Num. 4 of 6
Source: Aeroplane November 4th 1914
1914:
Hasler Telegraph Works
Hasler "Tel" Revolution Speed Indicators For Aeroplanes
Rec. Num. 5 of 6
Source: Flight October 30th 1914
1915:
Hasler Telegraph Works
Hasler Telegraph Works - TEL Revolution Speed Indicators
Rec. Num. 6 of 6
Source: Flight November 26th 1915