DIFF Subgroup
G01L 3/12 involving photoelectric means
Introduced: September 1968
Full Title
Measuring torque, work, mechanical power, or mechanical efficiency, in general > Rotary-transmission dynamometers > wherein the torque-transmitting element comprises a torsionally-flexible shaft > involving electric or magnetic means for indicating > involving photoelectric means
No child classifications to compare. This is a leaf node in both IPC and CPC.