参考文献
Haglund, T. R.
Patent: US1512462 , 1924 ;
C. I, 1925 , p. 3021
Full Text Show Details
Haglund, T. R.
Patent: DE407927 , 1925 ;
C. I, 1925 , p. 1450
Full Text Show Details
Haglund, T. R.
Patent: FR567481 , 1924 ;
C. II, 1924 , p. 240
Full Text Show Details
Scheid, B.
Patent: DE112800 , 1900 ;
C. II, 1900 , p. 551