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US D333,004 SGranted
Ventilatory instrument for measuring peak expiratory flow
AssigneeFerraris Development and Engineering Company Limited
InventorsGeorge A. McNamee, James A. Stockwell, Ronald F. Checksfield
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Abstract
The abstract isn’t available for this document.
Claims1
The ornamental design for a ventilatory instrument for measuring peak expiratory flow, as shown and described.