Originally posted by Coralis
This is kinda splitting hairs but...
Using your wording we would all be driving diesels, by specifying gasoline you've been too restrictive with your patent.
Now say Ford patented "a four wheeled carriage powered by an exothermic engine", they just captured every possible mode of power created by a power source that releases heat. Now that strikes me as similar to SP's "electropneumatically operated" patent.


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