Willoughby, John A. In Patent Office, interference no. 44156, John A. Willoughby and Percival D. Lowell v. James Harris Rogers; testimony in chief on behalf of Willoughby and Lowell.
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Willoughby, John A. In Patent Office, interference no. 44156, John A. Willoughby and Percival D. Lowell v. James Harris Rogers; testimony in chief on behalf of Willoughby and Lowell.
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Willoughby, John A. In Patent Office, interference no. 44156, John A. Willoughby and Percival D. Lowell v. James Harris Rogers; testimony in chief on behalf of Willoughby and Lowell.