"What can be more palpably absurd than the prospect held out of locomotives traveling twice as fast as stagecoaches?"
An anti-collision plotter for use by the pilot and/or crew of an inflight aircraft for rapidly and automatically providing a visual representation of those sectors surrounding the aircraft in which the probability of colliding with another aircraft is rel...
|4041893||Medical reference chart|
This invention pertains to a chart for use in hospitals and nursing homes, for example, to indicate the next procedure to be taken in the continuing care of a patient. The device consists of a flat sheet of a relatively rigid material including two vertic...
|3941080||Game position monitoring device|
A device for monitoring the occupation of respective positions by team members in a game where each team member regularly changes position. It has a carrying element with a number of discrete spaces. At the spaces there can be individually provided inform...