6 public-domain matches

Bevel Gearing

Cover of Bevel gearing

Bevel gearing

Ralph E. Flanders

Cover of Spur and Bevel Gearing

Spur and Bevel Gearing

Erik Oberg

United States patent 285584

United States patent 285584

Gustaf de Laval

Cover of Advances of Italian Machine Design

Advances of Italian Machine Design

Unknown author

Cover of Hybrid Bulk Metal Components

Hybrid Bulk Metal Components

Unknown author

Cover of Advances in High-Performance Non-ferrous Materials

Advances in High-Performance Non-ferrous Materials

Unknown author