From the great encyclopedia of mechanical calculating
Patent: | US 1977498 |
Title: | Flow Meter |
Date: | 16.10.1934 |
Place: | |
Country: | USA |
Person: | E. Staegemann |
Company: | |
Internal Links: | |
Keywords: | |
Link to the patent office: (without guarantee) | ![]() ![]() |
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This page was last modified 14:40, 17. Nov 2007.