<Tr> <Td> degree </Td> <Td> ° </Td> </Tr> <Tr> <Td> ditto mark </Td> <Td>" </Td> </Tr> <Tr> <Td> equals sign </Td> <Td> = </Td> </Tr> <Tr> <Td> inverted exclamation mark </Td> <Td> ¡ </Td> </Tr>

Who designed the symbol of rupee write the significance of the symbol