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      <marc:subfield code="a">Mambo, Philip L., </marc:subfield>
      <marc:subfield code="e">author.</marc:subfield>
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      <marc:subfield code="a">Frequency assignments for 53 channel CATV systems : </marc:subfield>
      <marc:subfield code="b">final report / </marc:subfield>
      <marc:subfield code="c">author: Philip L. Mambo.</marc:subfield>
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    <marc:datafield tag="264" ind1=" " ind2="1">
      <marc:subfield code="a">Ottawa, Canada : </marc:subfield>
      <marc:subfield code="b">Department of Communications, Communications Systems Research and Development, </marc:subfield>
      <marc:subfield code="c">October 23, 1981.</marc:subfield>
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      <marc:subfield code="a">Digitized copy from print [produced by Innovation, Science and Economic Development Canada].</marc:subfield>
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      <marc:subfield code="a">Includes bibliographical references (page 69).</marc:subfield>
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      <marc:subfield code="a">"This report is in fulfillment to milestone (b) of the DOC 400 MHz project. The report details the work done in phases I, II and III as outlined in the contract objectives"--Executive summary, page i.</marc:subfield>
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      <marc:subfield code="a">Includes introductory letter in English and French.</marc:subfield>
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      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2019/isde-ised/Co24/Co24-3-1-81-0024-eng.pdf</marc:subfield>
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