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US1856552.pdf (file size: 214 KB, MIME type: application/pdf)

Patent No. 1,856,552. “Carbide Rocket"; granted to Frank Hadamik and Nick Liberatore, of Union, N. Y.

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current22:43, 1 April 2020 (214 KB)RobertG (Talk | contribs) (Patent No. 1,856,552. “Carbide Rocket"; granted to Frank Hadamik and Nick Liberatore, of Union, N. Y.)

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