Thread: Supascrews and Twinqwik screws
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Graeme[_7_] Graeme[_7_] is offline
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Default Supascrews and Twinqwik screws
In message , Geo
writes

The text on this page seems to state that the SUPADRIV was an
improvement on the Pozi.

https://www.google.com/patents/US4464957

Interesting. Thank you.
--
Graeme
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