It weighed 2 Kgm with batteries. I would like to think that it constituted a number of firsts - but this will depend on definitions. The issue here is whether a Laptop has to be a clamshell.
Notebooks clearly implicate a hinge.
My thesis, baldly stated, is that in 81 something happened that created a two tier history of computing. The result is that Husky is absent from the pages of computer history - part of a lost or secret history.