Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Publication of BE407807ApublicationCriticalpatent/BE407807A/xx
B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
B24B55/06—Dust extraction equipment on grinding or polishing machines
D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
D04B15/66—Devices for determining or controlling patterns ; Programme-control arrangements
D04B15/68—Devices for determining or controlling patterns ; Programme-control arrangements characterised by the knitting instruments used
D04B15/70—Devices for determining or controlling patterns ; Programme-control arrangements characterised by the knitting instruments used in flat-bed knitting machines