Stephen Van Dulken

1952

• Inventing the 21st Century
• Inventing the twentieth century
• American inventions
• Inventing the 19th century
• Inventing the 19th Century
• Inventing the 20th century
• Inventing the American dream
• Inventos De UN Siglo
• British patents of invention, 1617-1977
• Introduction to patents information
• Introduction to Patents Information (Information in Focus Series)