Optical signal transmission between a hearing protector muff and an ear-plug receiver
A Standard patent application filed on 21 November 2002 credited to Wiegand, Thomas E.
Details
Application number :
2002352864
Application type :
Standard
Application status :
LAPSED
Under opposition :
No
Proceeding type :
Invention title :
Optical signal transmission between a hearing protector muff and an ear-plug receiver