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Return to Abstracts of Patents Return to Abstracts of Patents 500-749 Patent Abstracts677. ------. [FISCHER, F., AND PICHLER, H.] (Studien- und Verwertungs-G. m. b. H.). [Paraffin.] French Patent 828,893, no date. Kainer, p. 211. See German Patent 731,295 (abs. 3684) and Italian Patent 352,611 (abs. 3683). |