G04C21/30 - CPC Classification Index

ClassID:

179507 ⎘

G04C21/30 - CPC Classification

Classification description:

Producing acoustic time signals by electrical means producing the signals at adjustable fixed times with provision for a number of operations at different times, e.g. ringing the bells in a school

Sub-classes:

G04C21/305 » {by the hand(s) or handlike members closing the contacts} 0
G04C21/32 » giving indications at a number of places each at a different time, e.g. system of alarms in a hotel 1

Recent Application in this class:

20120087712

2012-04-12

PAINT APPLICATOR