Filter
Granted 6 Apr 1993 · no office action yet
Assignee: Mitsubishi Rayon Co., Ltd.
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Attorney: Attorney · Log in to unlock
Inventors: Osami Kato, Kazuo Kuwahara, Manabu Yanou · Examiner: Bernarr E. Gergory · AU 222 · TC 2200
Life of the patent
2 dated eventsAbstract
The ornamental design for a filter, as shown and described.
Classifications
2 codes- B01D29/11
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