Homepage Crypto Index Enigma Hagelin Fialka Siemens Philips Nema Racal Motorola STK Transvertex Gretag HELL Telsy TST Mils AT&T Tadiran USA USSR UK Voice Hand Mixers Phones Spy sets Burst encoders Intercept Covert Radio PC Telex Agencies Manufacturers Donate Kits Shop News Events Wanted Contact About Links Transvertex Patents Below is an overview of the various patents that have been filed internationally by Transvertex for their various products. Most of their patents were registred in a variety of countries. Whenever possible, we've made all of these available for download. If you have knownledge of a patent that is not listed here, please contact us.   GB1010223 / 14 August 1962 FR1331129 / 13 August 1962 This patent is about improvements of a cipher machine. It was filed in August 1962 and was published on 17 November 1965. It names Per-Erik Ahlman and Vigo Waldemar Lindstein as the inventor. The drawings in this patent show a machine that resembles the earlier HC-9. GB1152707 / 27 May 1966 FR1479726 / 11 May 1966 British patent for a mechanical cipher machine with pin-wheels and a full keyboard. The patent was filed in 1966 and was published on 21 May 1969. It was registered to Transvertex and names Florin Bengt and Loimaranta Kalevi as the inventors. GB1235571 / 5 March 1969 FR2036379 / 12 March 1969 US3557307 / 10 March 1969 CH482257 / 6 March 1969 DE1911175 / 5 March 1969 This patent for an improved ciphering machines was filed in March 1969 on behalf of AB Transvertex. It names Bengt Florin and Kalevi Loimaranta as the inventors. The patent was published in the UK on 16 June 1971. FR2076145 / 15 January 1971 SE348067 / 16 January 1971 NO127884 / 12 January 1971 GB1303001 / 18 January 1971 DK132476 / 15 January 1971 DE2101834 / 15 January 1971 This patent is for a ciphering device, specifically designed for password signalling. Further information Transvertex cipher machines Other cipher machines Any links shown in red are currently unavailable. If you like this website, why not make a donation? © Copyright 2009-2013, Paul Reuvers & Marc Simons. Last changed: Wednesday, 04 January 2012 - 15:14 CET