July 1956 - September 1956
The Board of the Electrotechnische Vereeniging of {period} has been constituted as follows:
| E.C.S. de Kam | President |
| Jaap Schuurman | Secretaris |
| H.J. Brinker | Thesaurier |
| W.H. Hoeufft | Excursieleider |
| M. Arens | Commissaris |
July 1956 - September 1956
The Board of the Electrotechnische Vereeniging of {period} has been constituted as follows:
| E.C.S. de Kam | President |
| Jaap Schuurman | Secretaris |
| H.J. Brinker | Thesaurier |
| W.H. Hoeufft | Excursieleider |
| M. Arens | Commissaris |