Columbia subject headings:
AEG-Telefunken--History.
Compagnie générale de télégraphie sans fil--History.
Electric power transmission equipment industry--France--History--20th century.
France--History--German occupation, 1940-1945.
Radio supplies industry--France--History--20th century.
World War, 1939-1945--Collaborationists--France.
Harvard subject headings:
AEG-Telefunken--History.
Compagnie générale de télégraphie sans fil--History.
Electric power transmission equipment industry--France--History--20th century.
Electric power transmission equipment industry--France--History--20th century.w.
France--History--German occupation, 1940-1945.
Radio supplies industry--France--History--20th century.
World War, 1939-1945--Collaborationists--France.
Princeton subject headings:
AEG-Telefunken--History.
Compagnie générale de télégraphie sans fil--History.
Electric power transmission equipment industry--France--History--20th century.
France--History--German occupation, 1940-1945.
Radio supplies industry--France--History--20th century.
World War, 1939-1945--Collaborationists--France.