Category:Protar lens diagrams
Patents:
- DE 56,109
- US 444,714
- GB 6,028/90
Media in category "Protar lens diagrams"
The following 8 files are in this category, out of 8 total.
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Protar.jpg 307 × 246; 19 KB
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Protar.png 659 × 435; 58 KB
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Ptp p85 img01.png 345 × 275; 29 KB
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Ptp p85 img02.png 385 × 371; 57 KB
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Ptp p85 img05.png 983 × 810; 212 KB
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Rudolph US444714A (Protar, 1890).svg 270 × 200; 2 KB
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ZeissProtar-text.svg 529 × 488; 15 KB
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ZeissProtar1.jpg 525 × 318; 23 KB
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