Category:1939 patents

Subcategories

This category has only the following subcategory.

Media in category "1939 patents"

The following 6 files are in this category, out of 6 total.

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  Continuous casting Williams patent US2284503.png 1,504 × 2,176; 108 KB
  
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  Patent drawing for a bottle for 'Sleeping' perfume by Elsa Schiaparelli, 1939. USD116055 crop 01.png 777 × 1,293; 58 KB
  
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  Patent drawing for a bottle for 'Sleeping' perfume by Elsa Schiaparelli, 1939. USD116055.png 1,701 × 2,833; 150 KB
  
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  US2161995A, Arthur T. Cahill, Speaker and Listening Device, filed 1935, issued 1939.pdf 1,158 × 1,702, 9 pages; 1.08 MB
  
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  USD113021S Electrical Musical Instrument (1938-11-25 filed, 1939-01-24 published) by George H.Stephens - Hammond Novachord.jpg 1,965 × 3,145; 796 KB
  
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  USD113021S Electrical Musical Instrument (1938-11-25 filed, 1939-01-24 published) by George H.Stephens - Hammond Novachord.pdf 1,158 × 1,702, 2 pages; 93 KB