Ballistic projectile

Surgery – Controlled release therapeutic device or system – Implanted dynamic device or system

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604 49, 102502, 102512, A61M 500

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active

046646647

ABSTRACT:
Ballistic projectiles for subsonic propulsion having a helically twisted body portion nad a tapered nose portion and having an apparent density of up to 5 g/cm.sup.3. The projectiles can be propelled through barrels having a complementary barrel without objectionable fouling.

REFERENCES:
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patent: 1230712 (1917-06-01), Holter
patent: 1241409 (1917-09-01), Lizarraga
patent: 1275028 (1918-08-01), Holter
patent: 3790948 (1974-02-01), Ratkovich
patent: 3902683 (1975-09-01), Bilsbury
patent: 3948263 (1976-04-01), Drake et al.
patent: 3982536 (1976-09-01), Krogseng et al.
patent: 4065753 (1977-12-01), Paul
patent: 4087791 (1978-05-01), Lemberger
Greener, W. W. "The GUN and its Development", 8th ed. pp. 614-619 (1907).
Boothroyd, "Guns Through the Ages", pp. 80-87, (1961).

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