Patent:US573228
Patent: | US 573228 |
Title: | Calculating Machine |
Date: | 15.12.1896 |
Place: | |
Country: | USA |
Person: | G. W. MacKenzie, T. C. Sloane & W. P. Hanna |
Company: | |
Internal Links: | |
Keywords: | |
Link to the patent office: (without guarantee) | ![]() ![]() |

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Patent: | US 573228 |
Title: | Calculating Machine |
Date: | 15.12.1896 |
Place: | |
Country: | USA |
Person: | G. W. MacKenzie, T. C. Sloane & W. P. Hanna |
Company: | |
Internal Links: | |
Keywords: | |
Link to the patent office: (without guarantee) | ![]() ![]() |