UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

NOTICE OF EFFECTIVENESS

Effective Date: December 04, 2012
Accession Number: 0001104659-12-081579
Submission Type: POS AM
CIK: 0000018937
Company Name: CERADYNE INC
File Number: 333-105883
Ceradyne, Inc. (MM) (NASDAQ:CRDN)
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