00000nam 2200000zi 4500 9.877676 CaOODSP 20221107165033 m o d f cr |n||||||||| 190808e197706##onc||||#o f00| 0|eng d CaOODSP eng rda CaOODSP n-cn--- Co23-53/1977E-PDF Mobile digital communications. [Ottawa] : Telecommunication Regulatory Service, June 1977. 1 online resource (69 unnumbered pages) : charts text txt rdacontent computer c rdamedia online resource cr rdacarrier Digitized edition from print [produced by Innovation, Science and Economic Development Canada]. gccst Broadcasting gccst Telecommunications Canada. Department of Communications. PDF 2.97 MB https://publications.gc.ca/collections/collection_2019/isde-ised/Co23/Co23-53-1977-eng.pdf