Maschinenfabrik Heid Aktiengesellschaft

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4936174 Center-drive latheExpiredMar 14, 89Jun 26, 90[B23Q, B23B]
4890522 Clamping head for the releasable attachment of a workpiece carrier to a machine tool spindleExpiredMar 25, 88Jan 02, 90[B23B]
4872380 Workpiece positioner for chuck and center machiningExpiredFeb 18, 88Oct 10, 89[B23B]
4837918 Machine tool assemblyExpiredMay 26, 88Jun 13, 89[B23Q]
4807487 Mass-compensation oscillating drive for oscillatory machinesExpiredMay 14, 87Feb 28, 89[B07B]
4801374 Apparatus for the treatment of seed materialsExpiredJun 29, 87Jan 31, 89[B07B]
4774753 Measuring device for a machine toolExpiredApr 18, 86Oct 04, 88[B23Q]
4683626 Tool Holder for a machine toolExpiredDec 10, 85Aug 04, 87[B23B]
4658754 Equipment for the uniform dosage, dispersion and application of protective coatings with liquid formula, particularly seed-dressing meansExpiredJun 04, 85Apr 21, 87[B05B]
4635329 Tool holder assembly for machine toolsExpiredNov 01, 84Jan 13, 87[B23B, B23C]
4626149 Rotating toolhead, especially for turning stationary workpiecesExpiredDec 11, 84Dec 02, 86[B23B]

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