Title:
Convertible sports equipment
Document Type and Number:
United States Patent 3399889
Inventors:
Harry, Nicholas G.
Plaque It!
Sponsored by: Flash of Genius |
Publication Date:
09/03/1968
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Referenced by:
Export Citation:
Primary Class:
Other Classes:
224/486, 273/407
International Classes:
A45F4/00; E04H15/58; A63B61/00; A63B63/08; E04H15/32; A63B63/00
US Patent References: