8 public-domain matches

Patent Class 2

United States patent 903073

United States patent 903073

Murray W. Ferris

United States patent 999388

United States patent 999388

David McCullough

Cover of Patents for inventions

Patents for inventions

Great Britain. Patent Office

Cover of Laws, etc

Laws, etc

United States

United States patent 996343

United States patent 996343

Edward Johnson

United States patent 991315

United States patent 991315

Sarah Ann Jenyns

Cover of Intellectual Property Strategy

Intellectual Property Strategy

John Palfrey

Cover of The Dean

The Dean

Unknown author