patent of addition इन हिंदी

patent: एकस्व अधिकार-पत्र

of: स् का की पर बाबत

addition: अनुवृद्धि आधिक्य

He filed two patents and two patents of addition in between 1849 and 1851.

patent ductus arteriosus	patent flannel	patent insides
patent interauricular defect	patent leather	patent office
patent parasitaemia	patent period	patent urachus

अंग्रेज़ी→नहीं। नहीं।→अंग्रेज़ी