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What were Marry Kenner major achievements?

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Step-by-step explanation:

In 1976 Kenner patented an attachment for a walker or wheelchair that included a hard-surfaced tray and a soft pocket for carrying items. She and her sister invented a toilet paper holder they patented in 1982. Her final patent, granted on September 29, 1987, was for a mounted back washer and massager.

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