. . "Pneumoconiosis Compensation Act, 1962" . "Pneumoconiosis Compensation Amendment Act, 1964" . . "Pneumoconiosis Act, 1956" . "Pneumoconiosis Compensation Amendment Act, 1965" . . . "Pneumoconiosis Compensation Amendment Act, 1968" . . "Pneumoconiosis Compensation Amendment Act, 1970" . "Pneumoconiosis Compensation Amendment Act, 1970" . "Pneumoconiosis Compensation Laws Amendment Act, 1972" . .