HASKEL, INC.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4708036 Stud tensioning apparatusExpiredJun 10, 85Nov 24, 87[B25B]
4622732 Method for forming joints in pressurized fluid systemsExpiredNov 23, 84Nov 18, 86[F16L, B23P, B21D]
4607426 Swaging method and apparatus for axially extended expansion of tubesExpiredAug 05, 85Aug 26, 86[B21D, B23D]
4567631 Method for installing tubes in tube sheetsExpiredOct 13, 83Feb 04, 86[B23P, B21D]
4467630 Hydraulic swaging seal constructionExpiredDec 17, 81Aug 28, 84[B21D]

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