The Swiss had an 80 channel allocation Band A was 40 channels and used as a personal radio service PRS. Band B had 40 Channels and was used as a CB service.

Band A: 933.0125-933.9875 MHz
Band B: 934.0125-934.9875 MHz

All of the sets used without exception were sets modified  from the Japanese 903/905MHz band by the manufacturer. Specifically for the allocation in Switzerland.

See here for a description of how the Radios functioned. Similar to the system in Japan