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
Traffic signaling system
摘要
申请公布号
US2231671(A)
申请公布日期
1941.02.11
申请号
US19380195772
申请日期
1938.03.14
申请人
ASSOCIATED ELECTRIC LABORATORIES, INC.
发明人
HERSHEY HARRY E.
分类号
B61L29/28
主分类号
B61L29/28
代理机构
代理人
主权项
地址
您可能感兴趣的专利
UPRIGHT TYPE VACUUM CLEANER
COMMON TYPE DUST COLLECTING BAG FOR VACUUM CLEANER
RICE COOKER WITH RICE WASHING FUNCTION
SEAT FOR VEHICLE
TOOTHBRUSH
POCKET MIRROR
HAND-PUSH TYPE CLEANER
BINDER FOR TEA MANUFACTURING
METHOD FOR PRESERVING FRESHNESS OF FISH
REVERSE HOOK FOR ANGLING SWEETFISH BY DECOY
SEEDLING INSERTING MACHINE
SOIL DISINFECTING MACHINE
FISHING MOTOR-DRIVEN REEL
Multilayer adhesive tape
Heating resistor type air flow rate measuring apparatus
Method and apparatus for paying bills electronically using machine readable information from an invoice
Methods of characterizing ventricular operations and applications thereof
Color cathode ray tube with curved shadow mask having central recessed portions
