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
Improvements in filter insertions for respirators
摘要
申请公布号
GB307835(A)
申请公布日期
1930.07.14
申请号
GB19290008033
申请日期
1929.03.12
申请人
VACLAV HORAK
发明人
分类号
A62D7/00
主分类号
A62D7/00
代理机构
代理人
主权项
地址
您可能感兴趣的专利
DATA TRANSMISSION METHOD AND DATA TRANSMITTER
STEP-DOWN DC-DC CONVERTER
CONTROL DEVICE FOR CONTINUING IMPORTANT LOAD OPERATION
MANUFACTURE OF CATION-EXCHANGE RESIN, CATION-EXCHANGE RESIN AND COLUMN FOR CHROMATOGRAPHY
PINCHING DETECTION SENSOR AND PINCHING-PREVENTING DEVICE
BODY GUARD JACKET
METHOD FOR MONITORING WHIPPED STATE OF CREAMS
MANUFACTURE OF SEMICONDUCTOR DEVICE
DUAL-FUNCTION HEAD LAMP FOR AUTOMOBILE HAVING SIGNAL LIGHT SOURCE AND FIXED LENS
COLOR FILTER AND LIQUID CRYSTAL DISPLAY DEVICE
LIQUID CRYSTAL DISPLAY DEVICE AND ITS PRODUCTION
LIQUID CRYSTAL ELEMENT AND LIQUID CRYSTAL DEVICE EQUIPPED WITH THE SAME
PRODUCTION OF HOLOGRAM AS WELL AS HOLOGRAM AND DISPLAY DEVICE
ASSEMBLY OF VERTICAL RESONATOR TYPE SURFACE LIGHT EMITTING LASER AND PHOTODETECTION MONITOR AND ASSEMBLING METHOD THEREOF
METHOD, DEVICE, AND SYSTEM FOR INFORMATION DISPLAY
METHOD AND DEVICE FOR ALLOCATING FUNCTION
SOLAR BATTERY APPARATUS
INPUT DEVICE
METHOD FOR DETECTING ALTERATION OF ELECTRONICALLY CONTROLLED EQUIPMENT AND ITS DEVICE
MAGNETIC RECORDING AND REPRODUCING DEVICE