Patent of Mary Hallock-Greenewalts colour organ
type: Item
Type of information: source
Field: lighting and projection
mentions: Mary Hallock-Greenewalt
mentions: colour organ
mentions: Sarabet color organ
Copy available online: en
Source URL: mary-hallock-greenewalt-feature
Publication date: 1929-10-15T00:00:00Z
Internal image: US1731772-drawings-page-4.png
is used in theme: Early history of moving lights (Theme)
Canon documents public id: 1040