Found 292 records, showing 4 of 25 pages
1928:
Thos Firth & Sons Ltd Sheffield
Firth Case Hardened Steel For Aircraft
Rec. Num. 37 of 292
Source: Flight May 3rd 1928
1928:
Thos Firth & Sons Ltd
Firth Special Alloy Steels For Aircraft Construction
Rec. Num. 38 of 292
Source: Flight November 29th 1928
1928:
Thos Firth & Sons Ltd
Firth Stainless Steels For Aircraft Constructors
Rec. Num. 39 of 292
Source: Flight August 23rd 1928
1928:
Thos Firth & Sons Ltd
Aircraft Quality Firth Staybrite Steel For Welded Fittings
Rec. Num. 40 of 292
Source: Flight November 15th 1928
1929:
Thos Firth & Sons Ltd
Firth Aircraft Steels - Alloy Steels For Every Purpose
Rec. Num. 41 of 292
Source: Aeroplane July 24th 1929
1929:
Thos Firth & Sons Ltd
Firth - Alloy Steels To Air Board Specification S2,S3,S8 etc
Rec. Num. 42 of 292
Source: Flight June 27th 1929
1929:
Thos Firth & Sons Ltd
Firth Special Alloy Steels For Aircraft Constructors
Rec. Num. 43 of 292
Source: Flight March 28th 1929
1929:
Thos Firth & Sons Ltd
Firth Staybrite Steel
Rec. Num. 44 of 292
Source: Flight July 11th 1929
1929:
Thos Firth & Sons Ltd
Firth Aero Steels 1929
Rec. Num. 45 of 292
Source: Aeroplane July 17th 1929
1929:
Thos Firth & Sons Ltd
Firth Aero Steels
Rec. Num. 46 of 292
Source: Aeroplane September 18th 1929
1929:
Thos Firth & Sons Ltd
Firth Aero Steels
Rec. Num. 47 of 292
Source: Aeroplane September 18th 1929
1929:
Thos Firth & Sons Ltd
Firth Special Alloy Steels
Rec. Num. 48 of 292
Source: Flight January 17th 1929