首页
产品
黄页
商标
征信
会员服务
注册
登录
全部
|
企业名
|
法人/股东/高管
|
品牌/产品
|
地址
|
经营范围
发明名称
Artificial oyster cultch
摘要
Described is an oyster cultch made from coal-ash wastes substantially as effective as the natural oyster-shell cultch.
申请公布号
US4844015(A)
申请公布日期
1989.07.04
申请号
US19870122309
申请日期
1987.11.18
申请人
UNIVERSITY OF DELAWARE
发明人
GARVEY, MARGARET M.;PRICE, JR., KENT S.
分类号
A01K61/00
主分类号
A01K61/00
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Slit illuminating device
Magneto resistive magnetic transducers
Apparatus for recording and reproducing information on magnetic tape
Antenna deicing apparatus
Electromagnetic reciprocating linear actuator with permanent magnet armature
TV camera
Charge transfer signal processing apparatus filter
Hair waving applicance having plural independently temperature controllable electric heaters
High voltage safety-glow insulator
Polymerization of tetrahydrofuran to prepare polytetramethylene ether glycols
2-Decarboxy-2-hydroxymethyl-19,20-didehydro-13,14-dihydro-PG1 compounds
Polyphenylether-bridged polyphthalocyanine
Process for resolving D, L-leucine
Ornament for burial monuments
Expanded reinforcing sheet material, its method of manufacture, and sheet material reinforced therewith
Process for improving baking properties of unbleached flour
Deoxygenation of liquids
Process for removing ozone from an ozone-containing gas
Treatment of effluent
Control device of AC motor