This is nothing new. Demian Martin holds a patent on this, by the way.
Showing 2 responses by bpwalsh
Here is information on the patent I mentioned: http://l2.espacenet.com/espacenet/viewer?PN=US5307416&CY=gb&LG=en&DB=EPD Brian Walsh |
Here is information on the patent I mentioned: http://l2.espacenet.com/espacenet/viewer?PN=US5307416&CY=gb&LG=en&DB=EPD Brian Walsh |