SU 1291971   "Division Device"
                                                                              Original (in Russian)         English Translation        esp@cenet  Link

                                                                              SU 1231498   "Division Device"
                                                                              Original (in Russian)         English Translation        esp@cenet  Link
                                                                              
                                                                              SU 1332312   "Division Device"
                                                                              Original (in Russian)         English Translation        esp@cenet  Link