November 1948 - February 1949
The Board of the Electrotechnische Vereeniging of {period} has been constituted as follows:
U.J.K. Versfelt | President |
Otto von Königslöw | Secretaris |
J.F.T. van Heemskerck Veeckens | Excursieleider |
K.T.A. Halbertsma | Commissaris |