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Title:
Junk shot
United States Patent 3016830
Inventors:
Kirby II, John Henry
Publication Date:
01/16/1962
Assignee:
Kirby II, John Henry
Primary Class:
Other Classes:
102/313, 102/319, 166/99, 175/4.56, 175/67
International Classes:
E21B29/02; E21B31/00
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