Compressional-wave lens,申请号US19540465671-传众专利搜索

首页产品黄页商标征信

会员服务注册登录

法人/股东/高管

发明名称	Compressional-wave lens
摘要
申请公布号	US2848058(A)	申请公布日期	1958.08.19
申请号	US19540465671	申请日期	1954.10.29
申请人	HARTSFIELD WILLIAM L	发明人	HARTSFIELD WILLIAM L.
分类号	H04R1/34	主分类号	H04R1/34
代理机构		代理人
主权项
地址

您可能感兴趣的专利

SELECTOR SWITCH

DEVELOPING DEVICE

DEVELOPING BIAS CONTROLLER FOR ELECTROPHOTOGRAPHIC COPYING DEVICE

PHYSIOLOGICALLY ACTIVE SUBSTANCE SEN-366 AND PRODUCTION THEREOF

THICKENER AND ITS USE AND PRODUCTION

PREPARATION OF POWDERY ELECTROLYTE COMPOUND MIXTURE FOR DIALYSIS OF ARTIFICIAL KIDNEY

DEPOSITED FILM FORMING DEVICE BY PLASMA CVD METHOD

SPINNING OF GLASS FIBER

COATING APPARATUS

APPARATUS FOR GENERATING ULTRAHIGH PRESSURE AND HIGH TEMPERATURE

SILVER HALIDE PHOTOGRAPHIC SENSITIVE MATERIAL

METHOD FOR PLATING POLYESTER RESIN FILM

SEMICONDUCTOR MEMORY DEICE

MOLD FOR PRESSURE/VACUUM MOLDING

RESIN COMPOSITION

IMAGE DISPLAY FOR SCINTILLATION CAMERA

TEST TUBE FOR DETECTING GAS COMPONENT IN AIR