Assertion: turret lathe | /r/HasProperty | developed
Facets:
value: during the 1870s through 1890s
type: TEMPORAL
Source sentences:
text: During the 1860s, when semi-automatic turret lathes were developed, they were sometimes called "automatic".
text: During the 1870s through 1890s, the mechanically automated "automatic" turret lathe was developed and disseminated.