Dart-like projectile with hollow needle
United States Patent 3266806
US Patent References:
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- - 2806317

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Inventors:
Warren, Edwin F.
Andrew, Styka
Publication Date:
08/16/1966
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Assignee:
Warren, Edwin F.
Andrew, Styka
Primary Class:
473/581
Other Classes:
604/130, 124/62
International Classes:
F42B12/54; F42B12/02
US Patent References:
3147011Marking dart game