Category:Patents from the United States - Wikimedia Commons
File:Patent Case File No. 1,006,158, Removable Calks for Horse Shoes, Inventor(s)- Louis Wessels and John B. Lau - NARA - 55295426 (page 12).jpg - Wikimedia Commons
Category:Patents from the United States - Wikimedia Commons
Category:Patents from the United States - Wikimedia Commons
Category:Patents from the United States - Wikimedia Commons
Category:Patents from the United States - Wikimedia Commons
Category:Patents from the United States - Wikimedia Commons
File:Patent Case File No. 1,006,158, Removable Calks for Horse Shoes, Inventor(s)- Louis Wessels and John B. Lau - NARA - 55295426 (page 2).jpg - Wikimedia Commons
File:Patent Case File No. 1,006,158, Removable Calks for Horse Shoes, Inventor(s)- Louis Wessels and John B. Lau - NARA - 55295426 (page 23).jpg - Wikimedia Commons
Category:Patents from the United States - Wikimedia Commons
File:Patent Case File No. 1,006,158, Removable Calks for Horse Shoes, Inventor(s)- Louis Wessels and John B. Lau - NARA - 55295426 (page 23).jpg - Wikimedia Commons
File:Patent Case File No. 1,006,158, Removable Calks for Horse Shoes, Inventor(s)- Louis Wessels and John B. Lau - NARA - 55295426 (page 23).jpg - Wikimedia Commons