(Wogau) (1849,   1923), , "  ", 1- , - (1899), .

...

" ʰ"

"  ʰ" ("Wogau & Co"), .

...

-

- (Krieger) (1894  1979), , .

...

(Wokano) (24 1846  24 1929, ), , .

...

"-"

"-", (), ().

...

( )

(Wolff) , .

...

, .

...

" "

"  ʭȭŭҭ", (Allgemeine Elektrizitäts-Gesellschaft, AEG), .

...

  ܭέέɭҭͭ ŭҭ ().

...

(Wurm) ( ) (25 1826, ,   7 1904, .-), , , , , .

...