74000290
Nov 16, 1989
Aug 10, 1993
SAFETY DEVICES; NAMELY, HEARING PROTECTORS TO PROTECT EARS FROM EXCESS NOISE OR INJURY AND PARTS FOR SUCH EAR SAFETY PROTECTORS
Electrical and Scientific ApparatusEAR SAFETY PROTECTORS TO PROTECT EARS FROM EXCESS NOISE FOR MEDICAL AND PROPHYLACTIC PURPOSES
Medical Apparatus