Books by "Transvaal (Colony). Winding ropes and safety catch commission"
2 books found
Report of the Transvaal Commission Upon the Use of Winding Ropes, Safety Catches and Appliances in Mine Shafts
by Transvaal (Colony). Winding Ropes and Safety Catch Commission
1907
Report of a Commission Appointed by His Excellency the Lieutenant-Governor to Enquire Into And, Report Upon the Use of Winding Ropes, Safety Catches and Appliances in Mine Shafts
by Transvaal (Colony). Winding ropes and safety catch commission
1907