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US303839.pdf (file size: 175 KB, MIME type: application/pdf)

Patent No. 303,839. "Rocket"; granted to John T. Hadfield, of Middletown, Conn.

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current22:43, 1 April 2020 (175 KB)RobertG (Talk | contribs) (Patent No. 303,839. "Rocket"; granted to John T. Hadfield, of Middletown, Conn.)

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