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Originally Posted by 84K  Neumann got smart by the time the U67 came around and they trademarked the grill and body design. No one can clone it with out a law suit... |
That's an old wives tale. Patents expire after 7-20 years (depending on industry). The reason why Neumann won't clone them is THEY CAN'T make exact duplicates.
The companies who made their components are long out of business (e.g., Allen Bradley who made the resistors). Every company has their own formulas for various components - which in the audio chain, sound different from one another.