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
Locking device for blackboards
摘要
申请公布号
US1810305(A)
申请公布日期
1931.06.16
申请号
US19290374778
申请日期
1929.06.29
申请人
PROSE-MACO MANUFACTURING COMPANY
发明人
TRACY JOHN M.;SCHERER FRANCIS R.
分类号
B43L1/04
主分类号
B43L1/04
代理机构
代理人
主权项
地址
您可能感兴趣的专利
DEVICE FOR BINDING ELONGATED MATERIAL
WATER JET PROPULSION DEVICE
CONSTRUCTION METHOD OF SHELL STRUCTURE IN STRUCTURE
VIBRATION-DAMPING HULL STRUCTURE
RUBBER CRAWLER
BODY OUTSIDE PLATE FITTING STRUCTURE
MUCK CARRYING VEHICLE
WHEEL LOCK PREVENTING DEVICE
FLUID TYPE RETARDER CONTROL DEVICE
VEHICLE BODY LIFT-UP DEVICE OF MOBILE WORKING VEHICLE
VEHICLE UPPER SURFACE CLEANING EQUIPMENT
SEAT
FORWARD/BACKWARD MOTION CHANGE-OVER CONTROL DEVICE FOR VEHICLE
PTO TRANSMISSION MECHANISM
CAR BLIND DEVICE
STEAM COMPRESSION TYPE FREEZER FOR AUTOMOBILE AIR CONDITIONER
IMPACT DOT PRINTER
PNEUMATIC TIRE
AIRCRAFT TIRE
Breathing monitor and stimulator