Beam-Pistol
A handheld ray gun.

Brain-Case
A device designed to transport a living human (or alien, if similar) brain.

Hand-Rocket
A handheld device that used reaction matter to aid explorers in space suits to move around easily in zero gee.

Interplanetary Passport
Required document for space travelers.

Invisible Watchmen
Automated 'home security' sentry system that targets and eliminates intruders.

Preserved Brains
Preserving a brain, and then communicating with it.

Radium Salt - assassin's choice
Radioactive materials used as an assassination weapon.

Space-Court
The place of judgement for crimes committed in interstellar space.

Space-Tanned
The characteristic darkening of the men of the spaceways.