from SB-2/A
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<page> 1 Common Stock Common Stock [Logo] [Micro Therapeutics, Inc. Logo] [Logo] Incorporated Under the Laws of See Reverse for the State of Delaware Certain Definitions Cusip 59500w 10 0 This Certifies That Is the Record Holder of Fully Paid and Nonassessable Shares of Common Stock, Par Value $.001 Per Share, of - Micro Therapeutics, Inc. Transferable on the Books of the Corporation by the Holder Hereof in Person or by Duly Authorized Attorney Upon Surrender of This Certificate Properly Endorsed. This Certificate Is Not Valid Unless Countersigned and Registered by the Transfer Agent and Registrar. Witness the Facsimile Seal of the Corporation and the Facsimile Signatures of Its Duly Authorized Officers. Dated: [Corporate Seal] Secretary President Countersigned and Registered: U.S. Stock Transfer Corporation Transfer Agent and Registrar by Authorized Signature
