June 22, 1918
1 min read
Inventions New and Interesting- June 22, 1918
A Department Devoted to Pioneer Work in the Arts
Some recently patented inventions for the protection of ships against submarine attack.
00
June 22, 1918
1 min read
Inventions New and Interesting- June 22, 1918
A Department Devoted to Pioneer Work in the Arts
Some recently patented inventions for the protection of ships against submarine attack.