October 1931 - October 1932
The Board of the Electrotechnische Vereeniging of {period} has been constituted as follows:
A.J. de Jager | President |
J.T. van der Koogh | Secretaris |
R.F. Volz | Thesaurier |
J.W.H. Lambach | Vice-President / Afgev. C.C. |
C.F. van den Berg | Commissaris |