js-mot.orgjs-mot.org/journal/pdf/491_58.pdfOcal tent and nics "ing ical Pat3 1976 1 H 1 12 31...
4
js-mot.orgjs-mot.org/journal/pdf/491_58.pdfOcal tent and nics "ing ical Pat3 1976 1 H 1 12 31 IPC (International Patent Classification) < 1971 Pat3 IPC D IPC A 01 B 1/24 IPC IPC IPC
