This item is authorised by the following title:
War Precautions (Patents) Regulations 1916 (Amendment) (C1918L00036)
War Precautions (Patents) Regulations 1916 (Amendment) (C1917L00283)
War Precautions (Patents) Regulations 1916 (Amendment) (C1917L00022)
War Precautions (Patents) Regulations 1916 (Amendment) (C1916L00256)
War Precautions (Patents) Regulations 1916 (Amendment) (C1916L00161)