HYDRO DYNAMICS OILFIELD CONTRACTORS INC

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Other (1)

15-15D
Wednesday, 9/19/2001
Notice of suspension of duty to file reports pursuant to Section 13 and 15(d) of the Act
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Prospectus (2)

424B3
Thursday, 7/26/2001
Prospectus filed pursuant to Rule 424(b)(3)
S-4
Thursday, 7/12/2001
Registration of securities issued in business combination transactions
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