Henry, M., Clarke, D., & Vignos, J. (2001). US patent no. 6,311,136 B1: Digital flowmeter. United States Patent and Trademark Office.
Chicago-čujuhus (17. p.)Henry, M., D. Clarke, juo J. Vignos. US Patent No. 6,311,136 B1: Digital Flowmeter. United States Patent and Trademark Office, 2001.
MLA-čujuhus (9. p.)Henry, M., et al. US Patent No. 6,311,136 B1: Digital Flowmeter. United States Patent and Trademark Office, 2001.
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