Patents - Notes Keywords
purchased 1868/07/07 -> 79694 - > 
purchased 1877/09/11 -> 195000 - > 
purchased 1879/02/25 -> D11041 - > 
purchased 1879/05/20 -> 215429 - > 
purchased 1879/06/24 -> D11259 - > 
purchased 1879/07/29 -> D10913 - > 
purchased 1884/09/09 -> 304688 - > 
purchased 1912/10/29 -> 1042447 - > 
purchased 1919/01/14 -> 1291228 - > 
purchased 1921/03/01 -> 1369850 - > 
purchased 1977/11/01 -> 4055972 - > 
purchased 1979/10/16 -> 4170884 - > 
12 Patents Listed