Category:1884 patents

Subcategories

This category has only the following subcategory.

Media in category "1884 patents"

The following 4 files are in this category, out of 4 total.

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  1885-06-11 - Kaiserliches Patentamt - Patentschrift 31781 (1von2).png 1,100 × 1,542; 2.82 MB
  
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  1885-06-11 - Kaiserliches Patentamt - Patentschrift 31781 (2von2).png 1,086 × 1,520; 2.31 MB
  
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  Espresso-machine-first-patent-angelo-moriondo.jpg 800 × 820; 121 KB
  
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  Patent Drawing for E. L. Brainard's Bell - NARA - 6104259 (page 2).pdf 1,502 × 2,254; 815 KB