CPC Subgroup
F41G 1/033 adjustable
Full Title
Sighting devices (for indirect laying of fire F41G3/16; bombsights F41G3/24 ) > Foresights > adjustable
F41G 1/033 Sighting devices (for indirect laying of fire F41G3/16; bombsights F41G3/24 ) > Foresights > adjustable