patent for projection of light (Q12062)
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Revision as of 12:16, 1 August 2026 by ChrisVG (talk | contribs) (Removed claim: Property:P182: https://patentimages.storage.googleapis.com/b5/91/54/2eca20d92426bd/US1864696.pdf)
Patent that forms the base of the Strand Stelmar projector
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | patent for projection of light | Patent that forms the base of the Strand Stelmar projector |