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| Re: R-32,38,40,42,44,46,62,68,142,143,160?? (860969) | |||
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Re: R-32,38,40,42,44,46,62,68,142,143,160?? |
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Posted by BMTLines on Wed Nov 18 23:06:00 2009, in response to Re: R-32,38,40,42,44,46,62,68,142,143,160??, posted by Hank Eisenstein on Wed Nov 18 21:11:48 2009. Thanks - and yes I have seen it but I was just wondering if the original intended usage changed as there seems to be an explosion of R-contracts after 1980, compared to before 1980. Did similar contracts exist before 1975 only that they were not assigned R numbers back then? |
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