G04D7/1221 - CPC Classification Index

ClassID:

179666 ⎘

G04D7/1221 - CPC Classification

Classification description:

Measuring, counting, calibrating, testing or regulating apparatus; Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard only for measuring for complete clockworks with recording, e.g. vibrograph

Sub-classes:

G04D7/1228 » {Devices for facilitating the reading or the interpretation of the recording} 4