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...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."

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Class 439/300 - Adapter


Subclass of Class 439 - Electrical connectors
Definition: Coupling part (a) for mating with a first mating part and
No. of patents: 10
Last issue date: 06/17/2008


NumberTitleIssue Date
7387544Lamp socket adapter to convert a screw type socket into a slot type socket irreversibly
A lamp socket adapter includes an adapter body, a threaded sleeve, a slot type socket, two locking bars, and two elastic members. Thus, the lamp socket adapter converts a screw type socket into a slot type socket irreversibly. In addition, the arc-shaped guide face ...
06/17/2008
7247049Hanging lamp conversion connector
A hanging lamp conversion connector for supporting a suspended lamp, and which can threadedly engage within the socket of a recessed lighting fixture, once its lamp has been removed, provides for an instant conversion of a recessed light or ceiling socket to a hangi...
07/24/2007
7198500Non-detachable bulb adapter for an energy saving bulb
A non-detachable bulb adapter for an energy saving bulb has a base, a casing, a cover and a unidirectional lock. The casing is mounted on the base and has a mounting slot defined longitudinally through the casing. The cover covers the casing and has an outer thread ...
04/03/2007
7189013Latch type optical module
A latch type optical communication module is easily mounted to and detached from a system port having a cage by means of a latch. The optical communication module is provided with a latch. The latch is rotated around a hinge shaft fixed to both sides of a receptacle...
03/13/2007
7101229Adapter for mogul base open fixture lamps
A lamp adapter for receiving a lamp having a conductive threaded portion and an extension with a conductive contact electrically insulated from the conductive threaded portion. The lamp adapter has a body with a top portion and a bottom portion. The top portion has ...
09/05/2006
7012331Device for mounting a semiconductor package on a support plate via a base
A semiconductor package is mounted to a support plate through a base. The base is inserted between a rear face of the semiconductor package and a front face of the support plate. An electrical connection mechanism is provided to connect the semiconductor package to ...
03/14/2006
6875058Electrical adapter for a fuel injector with two sets of connectors
A fuel injector assembly for use in an electrically-controlled engine having a fuel injector and an electrical adapter. The fuel injector has a first set of electrical connectors and a second set of electrical connectors. The electrical adapter has a body, a first s...
04/05/2005
4579410Security attachment for electrical plug
A security attachment for an electrical plug is effective to prevent unauthorized use but to readily permit authorized use. It comprises a pair of adapter elements which are mutually plugged together between the electrical plug and a wall receptacle. One ...
04/01/1986
4493519Adapter plug for current supply rail systems
Adapter for connection to electric current carrying rails having movable contacts for the electric connection and mechanical locking means including a button operated release mechanism to prevent incorrect insertion of the adapter in the rail....
01/15/1985
4183604Apparatus for mounting and removing electrical adapter from a socket
An adapter for a conventional threaded electric light socket or the like having an external right hand threaded base for threading into a conventional socket. A locking tab on the base permits the adapter to be threaded into the socket and jams the thread...
01/15/1980
 
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