Assertion: watt's patent | /r/HasProperty | new improvements
Facets:
Source sentences:
text: Patent 1,321: New improvements upon steam engines – expansive and double acting.
text: Patent 1,244: A new method of copying letters.
text: Patent 1,306: New methods to produce a continued rotation motion – sun and planet.
text: Patent 1,432: New improvements upon steam engines – three bar motion and steam carriage.