My thinking was: "From learning from 1st zw_report..."
...that your brother met the inventors:
Inventors:
- Hennenhoefer; Earl (Harrisburg, PA)
- Snyder; Richard V. (Harrisburg, PA),
- Stine; Robert D. (Dillsburg, PA)
>>>>> BTW and once again, thank you gentlemen. :-)
That possibly, they exchanged emails.
That zw may be able to obtain the layman's difference among the 3 patents directly from the source(s).
That was my hope anyway.
Else zw may obtain the differences from his "Revelations".
Unfortunately, those haven't come my way lately.