Mechanical and Utility Jewelry Patents

August 24, 2019

Mechanical and Utility Jewelry Patents 1940-1959

August 24, 2019

Mechanical and Utility Jewelry Patents 1930-1939

Costume Jewelry Collectors Presents an original publication by RCJ and Dorothea Stringfield   Jewelry Patents 1930 – 1939   Dotty’s friend Mary Walden-Till of the UK […]
August 24, 2019

Mechanical and Utility Jewelry Patents 1911-1929

August 24, 2019

Vintage Jewelry Patents

Costume Jewelry Collectors Presents an original publication by RCJ and Dorothea Stringfield Want to know the difference in a patent, a copyright or trademark?    Visit […]
August 24, 2019

Trifari Jewelry Patents: 1949

Costume Jewelry Collectors Presents an original publication by RCJ and Dorothea Stringfield Thanks to Mary Walden-Till for providing most of these patent images, as her hard […]
August 24, 2019

Trifari Jewelry Patents: 1948

Costume Jewelry Collectors Presents an original publication by RCJ and Dorothea Stringfield Thanks to Mary Walden-Till for providing many of these patent images.    Any unattributed […]
August 24, 2019

Trifari Jewelry Patents: 1947

Costume Jewelry Collectors Presents an original publication by RCJ and Dorothea Stringfield Images courtesy of Robin Deutsch.    Additional information or images will be added when […]
August 24, 2019

Trifari Jewelry Patents: 1946

Costume Jewelry Collectors Presents an original publication by RCJ and Dorothea Stringfield Images courtesy of Robin Deutsch.    Additional information or images will be added when […]
August 24, 2019

Trifari Jewelry Patents: 1945

Costume Jewelry Collectors Presents an original publication by RCJ and Dorothea Stringfield Thanks to Mary Walden-Till for providing most of these patent images. Any unattributed images […]