From the NUMBER@1 until NUMBER@2 , ORGANIZATION@1 and Excise and LOCATION@1 brewers and distillers used PERSON@1 's hydrometer to measure degrees proof .

Previously , PERSON@1 's hydrometer had been used since the NUMBER@1 when ORGANIZATION@1 and Excise and LOCATION@1 brewers and distillers began to use PERSON@1 's hydrometer .
