I found a basic patent for a device from 1990. I developed a new device with great improvements and updated for technological advances but its utility is identical in purpose to the original device.
Newport Beach, CA - over 1 year ago
Asked in Ashburn, VA - 12 months ago
Received 1 answer
Asked in Alexandria, VA - about 1 year ago
Received 6 answers
Asked in Fairfax, VA - about 3 years ago
Received 5 answers