IPC 7 English version
 
Concordance Table, Class H04
Int.Cl.7 Int.Cl.6
H04B  
H04B 10/00  
   H04B 10/30 H04B 10/00, H04B 10/10, H04B 10/12, H04B 10/22, H04B 10/24, H04B 13/00
H04L  
H04L 9/00  
   H04L 9/32 H04M 1/66
H04L 25/00  
   H04L 25/05 H04L 25/36, H04L 25/50
H04M  
H04M 1/00  
   H04M 1/215 H04M 1/21
   H04M 1/247, H04M 1/253 H04M 1/00
   H04M 1/2745 - H04M 1/2755 H04M 1/274
   H04M 1/65 G11B 31/00, H04M 1/64
   H04M 1/652, H04M 1/654 H04M 1/64, H04M 1/65
   H04M 1/656 H04M 1/00, H04M 1/64, H04M 1/65
   H04M 1/658 H04M 1/64, H04M 1/65
   H04M 1/66 H04M 1/26
   H04M 1/663 - H04M 1/673 H04M 1/26, H04M 1/66
   H04M 1/675 H04M 1/26, H04M 1/66, H04M 17/00
   H04M 1/677 H04M 1/36, H04M 1/66
   H04M 1/723 - H04M 1/727 H04M 1/72
   H04M 1/73 H04M 1/72, H04M 19/08
   H04M 1/733, H04M 1/737 H04M 1/72
   H04M 1/738 H04M 1/00, H04M 1/74 - H04M 1/78
   H04M 1/80 H04M 1/00, H04M 3/58
   H04M 1/82, H04M 3/00 H04M 1/00
H04M 3/00  
   H04M 3/424 H04M 3/42, H04M 3/44
   H04M 3/428 - H04M 3/436 H04M 3/42
   H04M 3/487 H04M 3/42, H04M 3/50
   H04M 3/493 H04M 3/42
   H04M 3/51 H04M 3/50
   H04M 3/523 - H04M 3/533 H04M 3/50
   H04M 3/537 H04M 3/58
H04N  
H04N 5/00  
   H04N 5/761 - H04N 5/7617 H04N 5/76