Apparatus for imparting a given density to substances in powderform and for filling up limited spaces with controllable quantities of the said substances
摘要
申请公布号
US2093028(A)
申请公布日期
1937.09.14
申请号
US19350015354
申请日期
1935.04.08
申请人
NAAMLOOZE VENNOOTSCHAP: MAATSCHAPPIL TOT EXPLOITATIE VAN "TEN BOSCH OSTROOIEN N. V."
