| Patents for B21C 51 - Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses (2,438) |
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| 01/08/1980 | US4182042 Marking device |
| 11/29/1979 | WO1979000989A1 A method of and an apparatus for marking metal objects |
| 11/20/1979 | CA1066802A1 Process data tracking system |
| 11/06/1979 | US4173182 Stamping mechanism for rolled goods with article alignment structure |
| 11/06/1979 | CA1065644A1 Magnetoelastic shape meter |
| 10/31/1979 | EP0005134A2 A method of and an apparatus for marking metal objects |
| 10/30/1979 | US4172429 Arrangement for marking workpieces |
| 08/28/1979 | US4165563 Automatic pilot apparatus for a printer |
| 08/23/1979 | WO1979000592A1 Method and apparatus for indicating and eliminating defects on metal slabs |
| 07/17/1979 | CA1058428A1 Combination strip contacting device for use in a rolling mill |
| 06/26/1979 | US4158955 Depression forming tool |
| 06/05/1979 | CA1056035A1 Coil diameter control system |
| 05/08/1979 | CA1053897A1 Method and apparatus for spraying agglomerating powders |
| 04/24/1979 | CA1053347A1 Roll parameter detector |
| 04/03/1979 | CA1051695A1 Rolling mill |
| 03/20/1979 | US4144808 Electrophotographic marking apparatus |
| 02/27/1979 | US4142237 Process for tracking a welded joint in a continuous long material in a production line |
| 12/26/1978 | US4131490 Method for scarfing surface defects of a metal piece |
| 12/12/1978 | CA1043954A1 Marking composition for hot metal articles |
| 09/26/1978 | US4116028 Rolling mill |
| 09/26/1978 | CA1039383A1 Strip shape measuring device |
| 08/22/1978 | US4109142 Process data tracking system |
| 08/15/1978 | US4106435 Apparatus for marking metal |
| 03/28/1978 | US4080814 Set-up guide for bending machine |
| 02/14/1978 | US4073260 Apparatus for removing cross welds from metal tubes and marking the same |
| 01/24/1978 | US4070614 Magnetoelastic shape meter for cold-rolled strips of ferromagnetic material |
| 01/03/1978 | US4066807 Release agents |
| 12/13/1977 | US4062214 Apparatus for measuring camber in rails |
| 11/22/1977 | US4059794 Method and apparatus for monitoring pass alignment in rolling mills |
| 11/08/1977 | US4056963 Means of determining extrusion temperatures |
| 08/16/1977 | US4042807 Apparatus for the processing of documents |
| 07/05/1977 | US4033183 Horizontal- and vertical-roll force measuring system |
| 06/21/1977 | US4030333 Method and means for separating successive rolling lots |
| 03/29/1977 | US4014286 Hot product marking system |
| 01/25/1977 | US4004459 Combination strip contacting device for use in a rolling mill |
| 09/14/1976 | US3979935 Strip shape measuring device |
| 02/17/1976 | US3938382 Method and apparatus for detecting shape of flat products |
| 02/10/1976 | US3937072 System for measuring plastic deformation created by a bending press |