H04R2499/00 - CPC Classification Index

ClassID:

232222 ⎘

H04R2499/00 - CPC Classification

Classification description:

Aspects covered by or not otherwise provided for in their subgroups

Sub-classes:

H04R2499/01 » General technical reviews, overviews, tutorials 4
H04R2499/10 » General applications 56

Recent Application in this class:

20150014088

Waterproof sound transmitting sheet, and method for producing same

20140332310

Waterproof sound transmitting sheet, and method for producing same