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HomeContentsVisual indexes > George A. Lauer (Cincinnati, Ohio)

 
  
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George A. Lauer (Cincinnati, Ohio) 
Patent illustration for "Improvements in Picture-Exhibitors" (US Patent no. 172,328) 
1876, 18 January (patented) 
  
Illustration 
Google Books 
 
LL/82339 
  
I'm indebted to Lee Eltzroth (Georgia Photographers Documentation Project) for bring this to my attention (Facebook, post, 1 May 2018).
 
Original patent: US172328A (Google Patents) 
 

 
  
 
  
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