Lawmakers hate this type of behaviour where the sole purpose is to reduce competition. At least where I live, technical interfaces are excluded from legal protection. You can protect the design of your new car, but not the ban someone from making wheels that fit it. I don't know if this applies to the US too, but I find it likely.
By the way I think a
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C-H breaker
sounds like something I should stay away from...
[This message has been edited by C-H (edited 07-31-2003).]