CPC Subgroup
F41G 1/425 Full Title
Sighting devices (for indirect laying of fire F41G3/16; bombsights F41G3/24 ) > Tube sights; Bar sights
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F41G 1/425 Sighting devices (for indirect laying of fire F41G3/16; bombsights F41G3/24 ) > Tube sights; Bar sights