Uncategorized
Inventor
Country: France
Mono-telephone relay
Mono-telephone relay
Multiplex telegraphy
Telegraph apparatus
Mono-telephone relay
Mono-telephone relay
Multiplex telegraphy
Telegraph apparatus
LandOfFree
Paul Edouard Heina does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with Paul Edouard Heina, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Paul Edouard Heina will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-P-473779