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Standard 497, Edition 7

Standard for Protectors for Paired-Conductor Communications Circuits

UL Revision
Standard 497, Edition 7 Edition Date: June 14, 2004 $254.00
Summary of Topics s0497_7_sum.html

Summary of Topics

This revision of ANSI/UL 497 is being issued to reaffirm ANSI approval of the Standard.

Back to Standard 497, Edition 7

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