U.S. Patent 88,013 - W. A. Cobb Projectile (1869)

No. 88,013 Patented March 23, 1869

Photographs of the W. A. Cobb projectile, U.S. Patent 88,013


Patent drawing for U.S. Patent 88,013, W. A. Cobb projectile
Patent specification text for U.S. Patent 88,013, W. A. Cobb projectile