Prospective Death Rays

"9. Device for intercepting and jamming foreign radio stations that are broadcasting images. Special Projects Laboratory. A design is in development.

Weapons (Death Rays)

10. Powerful electronic emitters and short wavelength rays. Literature and intelligence has been gathered, theoretical work is underway.

11. Powerful sound waves. Physical-Technical Laboratory and Special Projects Laboratory. Theoretical work is underway. Professor Andreev's device is being finished, which generates short sound waves using quartz."

Via _tezka.