A method for causing earthworms to come out of the ground so that they can be readily harvested, functional when applied to an area of ground to cause the earthworms in the soil to come out of the soil so that they can be harvested.
申请公布号
US4178711(A)
申请公布日期
1979.12.18
申请号
US19770863571
申请日期
1977.12.22
申请人
MERMAL, DONALD J;MERMAL, GARY A;MERMAL, HOWARD J;MERMAL, ROBERT M
发明人
MERMAL, DONALD J;MERMAL, GARY A;MERMAL, HOWARD J;MERMAL, ROBERT M