R MICHAEL DUFFIN known as as a business of DUFFIN, ROGER M. The business operates in DALLAS. Alternatively you can phone the business owner DUFFIN, ROGER M on 214-989-####. And you can send the correspondense to the next address 11566 CROMWELL CIR, DALLAS, TX, 75229 of R MICHAEL DUFFIN. The business owner has a business license No 35157 as A/C Contractor - AE which is valid until 1/4/2018.