1. Other instruments such as gravimeters and magnetometers are also used in the search for petroleum.

2. Under his leadership the Bavarian International Commission for Geodesy undertook precise gravity measurements with relative gravimeters throughout Bavaria.

3. Gravity meters (gravimeters) or gravity gradiometers, designed or modified for airborne or marine use, usable for systems specified in 1.

4. The invented high throughput storage-retrieval and screening system with a sensor plate is prepared for use with broad range of electrochemical devices, including high and low resistance electrometers, micro gravimeters, acoustic resonators, frequency and time domain impedance analyzers.