Assertion: electric organ's feature | /r/HasProperty | incorporated across the product line
Facets:
value: throughout the 1960s
type: TEMPORAL
Source sentences:
text: These features and others were incorporated across the product line throughout the 1960s, including small, relatively inexpensive spinet models with 37-note manuals (the AR1) and a unique "arc" 13-note pedal board, another Thomas Organ innovation, although one which was too narrow to allow true heel-toe playing.