BIDIRECTIONAL SEAL

申请公布号：GB2197697(B)

申请号：GB19870024759

申请日期：1987.10.22

申请公布日期：1991.01.02

申请人：

THE * MATHER COMPANY;* MATHER SEAL COMPANY

发明人：FREDERICK R * HATCH;BRADLEY L * STEUSLOFF

分类号：F16J15/32

主分类号：F16J15/32

CERAMIC BAND-STOP FILTER

A METHOD FOR DETACKIFYING OVERSPRAYED PAINT

FISH SCALING TOOL

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METHOD AND APPARATUS FOR DETERMINING FLOW RATE OF WELL FLUID CONSTITUENTS WITHOUT SEPARATING THE LIQUID CONSTITUENTS FROM ONE ANOTHER

INJECTION-TYPE CHEMICAL COMPOSITION FOR STABILIZATION AND REINFORCEMENT PROCESS USING THE SAME

SECURING DEVICE

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PROCESS FOR APPLYING A COPPER LAYER TO STEEL WIRE

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AN APPLICATOR FOR MAKEUP USE, A METHOD FOR PRODUCING THE SAME, AND AN APPARATUS FOR EFFECTING THE METHOD

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IMAGE FORMING APPARATUS