Abstract: An electronic watch with at least two control push-buttons, two contact studs electrically connected to the watch circuit, and a resilient generally arc-shaped contact blade connected to an earth and disposed between the push-buttons and the studs. Exertion of pressure on one of the push-buttons will cause the blade to contact a single stud to connect the same to earth.

Abstract: A substrate for integrated circuits which can be used for mounting different types of circuits indiscriminately by providing three kinds of conductive tracks, one for connection to one type of circuit, a second to another type of circuit and a third to either or both of such circuits. Each kind of conductive track is provided with a distinctive marking which indicates whether it can be connected to only one or the other of the circuits, or whether it can be connected to either one.

Abstract: Apparatus for the vacuum deposition of a plurality of successive layers on each of a plurality of substrates, comprises a vacuum chamber having selectively shieldable cups for heating and evaporating the material to be deposited, and a pair of relatively rotatable plates suspended in the vacuum chamber, the one plate to carry at least one circular series of substrates, and the other plate to carry at least one circular series of masks selectively and sequentially registrable with the substrates and through which the successive layers are applied. Means are provided for moving the plates toward and away from each other, for rotating them continuously conjointly, and for rotating them selectively relatively stepwise.