patent for projection of light (Q12062)
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Revision as of 12:46, 1 August 2026 by ChrisVG (talk | contribs) (Created claim: Property:P40: 28 June 1928)
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 |
Statements
28 June 1928Gregorian
0 references