patent for projection of light (Q12062)
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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
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mentions the original UK patent GB1864696XA·1925-09-10 (English)
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