Columbia subject headings:
Harvard subject headings:
BBC Aktiengesellschaft Brown Boveri & Cie
Electric machinery industry--Switzerland--Baden--History--19th century.
Electric machinery industry--Switzerland--Baden--History--20th century.
Electrical engineering--Switzerland--Baden--History--19th century.
Electrical engineering--Switzerland--Baden--History--20th century.
Princeton subject headings:
BBC Aktiengesellschaft Brown Boveri & Cie.
Baden (Switzerland)--Social conditions.
Electric machinery industry--Switzerland--Baden--History.
Labor movement--Switzerland--Baden--History.