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
Piezo-electric crystal
摘要
申请公布号
US1899163(A)
申请公布日期
1933.02.28
申请号
US19300492668
申请日期
1930.11.01
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
MARRISON WARREN A.
分类号
H03H9/19
主分类号
H03H9/19
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Brain stimulation electrode line and insertion device for brain stimulation electrode lines
System and method to support full-time protection services in a network
Systems and methods for coherent beam combining of laser arrays
Dynamic configuration of conference calls
Techniques for flexible resource authentication
Method and apparatus for broadcasting to a portable terminal
Utilizing an audio signal to monitor a program with a technique that is operable even during a mute mode
Method for simplifying interfaces having dynamic libraries
Extensible framework for managing UI state in a composite AJAX application
Systems and methods for selectively blocking application installation
Method for controlling heterogeneous multiprocessor and multigrain parallelizing compiler
Service assembly architecture
Method for analyzing an XACML policy
Shape-based geometry engine to perform smoothing and other layout beautification operations
Slack-based timing budget apportionment
Method and apparatus for calibrating a photolithography process model by using a process window parameter
Scheduling data with time diversity in flow systems
N-way synchronization of data
Method and apparatus for distributing group data in a tunneled encrypted virtual private network
Digital signal processing engine
