BS 6450-4:1993 - Page 4

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Private branch exchanges for connection to public switched telephone networks run by certain public telecommunications operators. Specification for ports | Status: Withdrawn

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Publisher BS

File size 1.64 MB

Pages 162

Format PDF

Publication date 1993-12-15

ISBN-13 978-0-580-22108-8

ISBN-13 plain 9780580221088

ISBN-10 0580221083

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File size 1.64 MB

Pages 162

Format PDF

Publication date 1993-12-15

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