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
Sound pickup device
摘要
申请公布号
US2346395(A)
申请公布日期
1944.04.11
申请号
US19420441593
申请日期
1942.05.04
申请人
RADIO CORPORATION
发明人
RETTINGER MICHAEL
分类号
H04R1/38
主分类号
H04R1/38
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Duftstoff-Dissipier-Vorrichtung
Vorrichtung zum Rückgewinnen von Bremsenergie von Hybridfahrzeugen
Brannslukkingsapparat for fordeling av vanndråper
FLAME-RETARDANT POLYESTER FILM
NOVEL SILICON COMPOUND AND POLYMER
HAIR TREATMENT COMPOSITION
PINBALL GAME MACHINE
MANUFACTURING METHOD OF DECORATIVE CHOPSTICKS AND DECORATIVE CHOPSTICKS PATTERNED BY THE SAME
GAME MACHINE
SUGAR CANE HARVESTER
MITE-PROOF SHEET
PHASE-SEPARATED GLASS AND COMPOSITE SUBSTRATE PREPARED USING THE SAME
RUBBER BELT
WATER SERVER WITH PEDESTAL
AIR CONDITIONER
VEHICULAR SEAT
BIAXIALLY ORIENTED AND LAMINATED POLYESTER FILM
MOLD FOR MOLDING OF SQUARE LENS
INSPECTION DEVICE AND INSPECTION METHOD FOR CYLINDRICAL MEMBER
PRINTER, AND CONTROL METHOD AND PROGRAM FOR PRINTER