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by DHMO 3610 days ago
The rocket-propelled over-the-top one isn't patented, though.

https://www.youtube.com/watch?v=HrrorPT8jsM&feature=youtu.be...
1 comments
amelius 3610 days ago
Well if the original patent was defined in terms of an abstract force, like it should have been, then the rocket-propelled one is patented too. All advice I've heard so far about filing patents is to keep things as abstract as possible.
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