alea-institute/kl3m-data-sample-004-shuffled huggingface dataset:
<PAGE>   1
                                                                     EXHIBIT 5.1

                    [Letterhead of Preston Gates & Ellis LLP]

                                  July 23, 1997



SeaMED Corporation
14500 Northeast 87th Street
Redmond, Washington 98052-3431

      Re:   Registration Statement on Form S-8 of SeaMED Corporation;
            1995 SeaMED Corporation Stock Option and Incentive Plan

Ladies and Gentlemen:

      We have acted as counsel to SeaMED Corporation (the "Company") in
connection with the filing of the above-referenced Registration Statement (the
"Registration Statement") relating to the registration of 200,000 shares (the
"Shares") of Common Stock, no par value per share, of the Company issuable under
the Company's 1995 Stock Option Plan. In connection therewith, we have reviewed
the Company's Articles of Incorporation, Bylaws, minutes of appropriate
meetings, a copy of the Plan and such other matters we deemed appropriate.

      Based on that review, it is our opinion that the Shares will be, when sold
pursuant to the terms contemplated by the Registration Statement, validly
issued, fully paid and non-assessable under the Washington Business Corporation
Act.

      We hereby consent to the filing of this opinion as an exhibit to the
Registration Statement and to all references to our firm included in or made a
part of the Registration Statement.


                                    Very truly yours,

                                    PRESTON GATES & ELLIS LLP

                                    /s/ Mark R. Beatty

                                    By
                                        Mark R. Beatty
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Editorial Note on Part 177
Editorial Note: Nomenclature changes to part 177 appear at 61 FR 14482, Apr. 2, 1996; 66 FR 56035, Nov. 6, 2001; 66 FR 66742, Dec. 27, 2001; 68 FR 15355, Mar. 31, 2003; 70 FR 72074, Dec. 1, 2005; and 81 FR 49896, July 29, 2016.

§ 177.1960 Vinyl chloride-hexene-1 copolymers. The vinyl chloride-hexene-1 copolymers identified in paragraph (a) of this section or as components of articles intended for use in contact with food, under conditions of use D, E, F, or G described in table 2 of § 176.170(c) of this chapter, subject to the provisions of this section. ( a ) *Identity.* For the purposes of this section vinyl chloride-hexene-1 copolymers consist of basic copolymers produced by the copolymerization of vinyl chloride and hexene-1 such that the finished copolymers contain not more than 3 mole-percent of polymer units derived from hexene-1 and meet the specifications and extractives limitations prescribed in paragraph (b) of this section. The copolymers may optionally contain hydroxypropyl methylcellulose and trichloroethylene used as a suspending agent and chain transfer agent, respectively, in their production.
( b ) *Specifications and limitations.* The vinyl chloride-hexene-1 basic copolymers meet the following specifications and extractives limitations: ( 1 ) *Specifications.* ( i ) Total chlorine content is 53 to 56 percent as determined by any suitable analytical procedure of generally accepted applicability.
( ii ) Inherent viscosity in cyclohexanone at 30 °C is not less than 0.59 deciliters per gram as determined by ASTM method D1243-79, “Standard Test Method for Dilute Solution Viscosity of Vinyl Chloride Polymers,” which is incorporated by reference. Copies may be obtained from the American Society for Testing Materials, 100 Barr Harbor Dr., West Conshohocken, Philadelphia, PA 19428-2959, or may be examined at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202-741-6030, or go to: *http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html .*
( 2 ) *Extractives limitations.* The following extractives limitations are determined by the methods prescribed in § 177.1970(d). ( i ) Total extractives do not exceed 0.01 weight percent when extracted with water at 150 °F for 2 hours.
( ii ) Total extractives do not exceed 0.30 weight percent when extracted with *n*-heptane at 150 °F for 2 hours.
( c ) *Other specifications and limitations.* The vinyl chloride-hexene-1 copolymers identified in and complying with this section, when used as components of the food-contact surface of any article that is subject to a regulation in parts 174, 175, 176, 177, 178 and § 179.45 of this chapter, shall comply with any specifications and limitations prescribed by such regulation for the article in the finished form in which it is to contact food.
[42 FR 14572, Mar. 15, 1977, as amended at 49 FR 10110, Mar. 19, 1984]