Klinghammer's computus

Klinghammer's computus is a mechanism determining the elements of the computus, in particular the date of Easter in the Gregorian calendar. This mechanism was built in the 1970s by Frédéric Klinghammer (1908–2006) and is nearly a reduced model of the computus found on the Strasbourg cathedral astronomical clock.

This keyword could refer to multiple things. Here are some suggestions: