Patent Case File No. 3,557,956, Method for De-Inking and Removal of Certain Contaminants from Reclaimed Paper Stock, Inventor(s)- Harry J. Braun and Stanley A. Dunn - NARA - 55295147 (page 11).jpg
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Patent Case File No. 3,557,956, Method for De Inking and Removal of Certain Contaminants from Reclaimed Paper Stock, Inventor(s) Harry J. Braun and Stanley A. Dunn NARA 55295147 (page 11), United States Patent and Trademark Office documents, US National Archives series: Patent Case Files, Images from the National Archives and Records Administration, US National Archives location: other, Patent Case File No. 3,557,956, Method for De-Inking and Removal of Certain Contaminants from Reclaimed Paper Stock, Inventor(s): Harry J. Braun and Stanley A. Dunn
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特許出願ファイルNo.557,956、回収済み紙製品の特定汚染物質の除去と除去方法、発明者ハリー・J・ブラウンとスタンレー・A・ダンNARA55295147(page 11)、米国特許商標庁文書、米国国立公文書館シリーズ:特許事件ファイル、米国国立公文書記録管理局の画像、米国国立公文書館の位置。他の、特許事件ファイルNo.557,956、回収紙からの特定汚染物質の除去と除去の方法
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contaminant reclaim reclaimable stock of record