Patents - Notes Keywords

assigned 1865/04/18 -> 47352 - >

assigned 1869/09/28 -> 000000_06 - >

assigned 1880/01/27 -> 223955 - >

assigned 1884/12/02 -> 308633 - >

assigned 1889/10/15 -> 412867 - >

assigned 1893/04/04 -> 494540 - >

6 Patents Listed