Patent for a Beleuchtungseinrichtung für Bildwerfer, Ludwig Pani, 1931
type: Item
Type of information: source
Field: lighting and projection
Publication date: 1931-11-10T00:00:00Z
author: Ludwig Pani
Internal image: AT125420B.jpg
Copy available online: https://worldwide.espacenet.com/patent/search/family/003634314/publication/AT125420B
Canon documents public id: 1003