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problems; and (4) how to overcome problems caused by tolerance
stacking.
To support her position that the respective sunglass assem-
bly operations conducted by B&L Ireland and B&L Hong Kong did not
require substantial skill, training, or experience, respondent
relies on the testimony of Dr. Cohen. At the time of the trial
herein, Dr. Cohen was a licensed optician and an associate pro-
fessor of Ophthalmic Dispensing Technology. Dr. Cohen testified
that he had taught basic assembly of prescription eyeglasses to
students of various levels of education and that it did not
require much time or training for a person to become competent at
assembling eyeglasses. Dr. Cohen admitted, however, that his
experience related to the dispensing of prescription eyeglasses
through optical shops and that it did not include mass production
techniques.
We are unwilling to rely on Dr. Cohen's testimony to refute
the direct evidence of the training and experience required of
operators at B&L Ireland and B&L Hong Kong in order to assemble
sunglasses that met B&L's quality standards. It appears that a
person assembling prescription eyeglasses for a retail optical
shop is not required to learn a standard technique for that
assembly. All that is important is the end result, not the
method utilized to achieve that result. For example, Dr. Cohen
testified that when students in the Cleveland Job Corps, a
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