Patents Represented by Attorney Richard A. Menelly, Esq.

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  • Gravity teaching aid
    Patent number: 5810602
    Abstract: A gravity teaching aid in the form of a tennis ball which includes a magnet for retaining the tennis ball against a metal surface against the downward pull exerted by the earth's magnetic field.
    Type: Grant
    Filed: February 20, 1997
    Date of Patent: September 22, 1998
    Inventor: Daniel James Menelly