Availability of patent databases and patent document delivery services on the Internet. by Gopalakrishnan, Gopika.

“…The free patent databases covered were the United States Patent and Trademark Office (USPTO), the European Patent Office (EPO), the Japanese Patent Office (JPO), the Canadian Intellectual Property Office (CIPO), and the IBM Intellectual Property Network (IPN).…”
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Wet gas measurement by Henry, M, Tombs, M

Wet gas measurement by Henry, M, Tombs, MS

Determining concentrations of components of a mixture by Henry, M

Wet Gas Measurement by Henry, M, Tombs, MS