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may 7, 1991 - Repulsor Patent

Description:

The patent on the Repulsor expires, allowing Stark Industries competitors to build their own models. Stane initiates development of a new, smaller model of repulsor that could be fitted to anti-aircraft missiles, in order to repatent the technology.

Added to timeline:

4 months ago
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Date:

may 7, 1991
Now
~ 34 years ago