H - Electricity – 04 – M
Inventor
H - Electricity
04
M
Inventor
Country: United States Of America
Expandable link telephone intercom system
Line hold circuits
Multi-link telephone intercom system
No associations
LandOfFree
John D. Gillen does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with John D. Gillen, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and John D. Gillen will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-P-240206