CPC Subgroup
G12B 1/04 Hollow bodies having parts which are deformable or displaceable under pressure, e.g. Bourdon tube, bellows (bellows in general F16J3/00)
Full Title
Sensitive elements capable of producing movement or displacement for purposes not limited to measurement; Associated transmission mechanisms therefor > Hollow bodies having parts which are deformable or displaceable under pressure, e.g. Bourdon tube, bellows (bellows in general F16J3/00)