In what year did Hans Hilfiker design the swiss railway clock with Mobatime?
Swiss railway clock The Swiss railway clock was designed in 1944 by Hans Hilfiker, a Swiss engineer, together with Mobatime, a clock manufacturer, for use by the Swiss Federal Railways as a station clock. In 1953, Hilfiker added a red second hand in the shape of a railway guard's signaling disc.
Trolleybuses in Zürich The Zürich trolleybus system () is part of the public transport network of Zürich, Switzerland. Opened in 1939, it combines with the Zürich S-Bahn, the Zürich tramway network and Zürich's urban motorbus network to form an integrated all-four style scheme.