84. For a self acting fulcrum, screw, or spiral lever, for propelling vessels, and rail-road carts, &c. &c.; John James Giraud, city of Baltimore, Maryland, April 27

• Book ID: 114028853
• Publisher: Elsevier Science
• Year: 1831
• Tongue: English
• Weight: 63 KB
• Volume: 12
• Category: Article
• ISSN: 0016-0032
• DOI: 10.1016/s0016-0032(31)90240-8