CPC Subgroup
F41G 3/28 Small-scale apparatus (relief models or maps G09B)
Full Title
Aiming or laying means (sighting devices F41G1/00; determining direction, distance or velocity by use of radio or other waves G01S; computers G06; antennas H01Q) > Teaching or practice apparatus for gun-aiming or gun-laying > Small-scale apparatus (relief models or maps G09B)