DISRAELI DOCUMENTS
The Austrian patent office.
Austrian Patent # 151,995 - J.Wi.S 1936
Austrian Patent # 151,995 - J.Wi.S 1936
Austrian Patent # 154,423 - J.Wi.S 1936
Austrian Patent # 154,423 - J.Wi.S 1936
Austrian Patent # 154,424 - J.Wi.S 1937
Austrian Patent # 154,424 - J.Wi.S 1937
Austrian Patent # 179,972 - Suwe 1953
Austrian Patent # 179,972 - Suwe 1953