IPC Definitions - January 01, 2012
G21H 5/00 - Definition
Attention is drawn to the following places, which may be of interest for search:
Preservation of cream, butter and cheese | A23C 13/08, A23C 15/18, A23C 19/097 |
Preparations containing radioactive substances for use in therapy or testing in vivo | A61K 51/00 |
Introduction of isotopes of elements into organic compounds | C07B 59/00 |