PART TWO � PatentI think there is only one patent applicable to the Enduro:
Patent 34531 of
1989.
This patent relates to �Improvements� to rotary mowers. Because this patent has
been covered elsewhere on these forums, I will be brief here [see Related Links].
Some improvements were not patentable, but go to improved specification. Here,
the most notable change was an over specified wall thickness of the tough alloy
base. Ever seen base cracks in other maker�s alloy base lawnmowers?

![[Linked Image]](https://www.outdoorking-forum.com.au/forum/images/jack/greenfield/enduro_patent_thumbs.jpg)
The notable patented features are the �wear strip� on the cutting side of the base �
I guess, a sort of sacrificial strip to prevent base damage. An obvious feature
is the secure and rigid mounting of the handle to the sides of base.
[Many folks will recall the poor design of Victa pressed steel bases here,
where handles were mounted to the top of the under-specified thin steel
base - a rich example of poor design].The final patent feature was the dished, square blade holder.
The idea was that less material would be used, facilitating less
inertia and therefore better governor response (maybe).
TO BE CONTINUED �