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You searched :Patents issued on Jan 09, 1990.

Check out Design Patents for Jan 09, 1990

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USRE33145

Magnetic base for portable tools - Jan 09, 1990

USRE33144

Vehicle wheel alignment apparatus - Jan 09, 1990

USRE33143

Tray for receiving foodstuffs and a process and apparatus for producing it - Jan 09, 1990

USRE33142

Centrifugal compressor - Jan 09, 1990

US4893354

System and method for self-compensating fiber-optic data transmission at temperatures up to 200 degrees C. - Jan 09, 1990

US4893353

Optical frequency synthesizer/sweeper - Jan 09, 1990

US4893352

Optical transmitter of modulated signals - Jan 09, 1990

US4893351

Communication receiver having a remote alert device - Jan 09, 1990

US4893350

Interference cancellation system - Jan 09, 1990

US4893349

FM communication system with improved response to rayleigh-faded received signals - Jan 09, 1990

US4893348

Power source control device in car telephone mobile station system - Jan 09, 1990

US4893347

FM communication system with improved response to Rayleigh-faded companded signals - Jan 09, 1990

US4893346

Apparatus for automatically inspecting objects and identifying or recognizing known and unknown portions thereof, including defects and the like, and method - Jan 09, 1990

US4893345

Method for detecting/processing image information - Jan 09, 1990

US4893344

Headset having a post auricle mount and arranged to be worn on a person's outer ear - Jan 09, 1990

US4893343

Dual diverging manifold loudspeaker system - Jan 09, 1990

US4893342

Head diffraction compensated stereo system - Jan 09, 1990

US4893341

Digital receiver operating at sub-nyquist sampling rate - Jan 09, 1990

US4893340

Multijunction unit apparatus for use in a digital network - Jan 09, 1990

US4893339

Secure communication system - Jan 09, 1990

US4893338

System for conveying information for the reliable authentification of a plurality of documents - Jan 09, 1990

US4893337

Circuit arrangement for a digital telephone station - Jan 09, 1990

US4893336

Call forwarding arrangement - Jan 09, 1990

US4893335

Remote access telephone control system - Jan 09, 1990

US4893334

Intercommunication system for telephones - Jan 09, 1990

US4893333

Interactive facsimile system and method of information retrieval - Jan 09, 1990

US4893332

Low-powered remote sensor - Jan 09, 1990

US4893331

System allowing selective connection of various types of external apparatuses to telephone set - Jan 09, 1990

US4893330

Method and apparatus for restricting credit card communication calls - Jan 09, 1990

US4893329

Call deferral system for telephones - Jan 09, 1990

US4893328

Automated telephone operator overflow device - Jan 09, 1990

US4893327

Colocated cellular radiotelephone systems - Jan 09, 1990

US4893326

Video-telephone communications system - Jan 09, 1990

US4893325

Integrated public safety answering point system - Jan 09, 1990

US4893324

Portable fire detection system - Jan 09, 1990

US4893323

Combination portable x-ray table and stretcher - Jan 09, 1990

US4893322

Film changer - Jan 09, 1990

US4893321

X-radiator, particularly for producing intra-oral dental exposures - Jan 09, 1990

US4893320

Apparatus for counting particles attached to surfaces of a solid - Jan 09, 1990

US4893319

Clock regeneration circuit employing digital phase locked loop - Jan 09, 1990

US4893318

Method for referencing multiple data processors to a common time reference - Jan 09, 1990

US4893317

Digital signals and frequency correction in a digital wireless system - Jan 09, 1990

US4893316

Digital radio frequency receiver - Jan 09, 1990

US4893315

Calorimetry system - Jan 09, 1990

US4893314

Protected internal laser mirror adjusting apparatus - Jan 09, 1990

US4893313

Semiconductor laser device which has a double-hetero structure having an optimal layer thickness - Jan 09, 1990

US4893312

Compact, real time tape drive system - Jan 09, 1990

US4893311

CMOS implementation of a built-in self test input generator (BISTIG) - Jan 09, 1990

US4893310

Digital key telephone system - Jan 09, 1990

US4893309

Digital interface between at least two subscriber line interface circuits and a processing unit - Jan 09, 1990

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