Device for searching for non-visible bodies with the aid of confocally arranged hollow surfaces of rotation that are used as receivers
DE480933C
Device for the approximate determination of the direction of incoming sound beams
DE468613C
Riflescope designed as an attachment
DE468969C
Procedure for determining the trajectory elements of non-visible aircraft
DE470028C
Panoramic device
DE462172C
Measuring devices, aiming devices for firearms, etc.
DE446766C
Device for the electrical remote transmission of angle settings of a transmitter
DE472796C
Procedure and device for determining the lateral direction in indirect shooting with cannons or machine guns
DE471221C
Directional hearers, consisting of one or more sound receiving and dissipation reflectors
DE446910C
Device for determining the height and lateral direction of the gun and for determining the projectile stamp from the point of impact coordinates, in particular for the shooting of moving air targets
DE484817C
Bogie for observation devices with an observer seat which is mounted on a support ring which can be rotated about its vertical axis
