drilling machinery: Quick Facts
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Topics
hammer drillpiston drilldrifter drillrotary drillrock drillair drillstoper drillmachinedrillingspinning muleSpinning jennytypesetting machinesawing machinesewing machinecalenderFarm machineryknitting machineFourdrinier machinecarding machine
Key People
Alfred Brandt
German engineer
Germain Sommeiller
French engineer