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...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!

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Class 331/84 - Reflex type (i.e., with repeller electrode)


Subclass of Class 331 - Oscillators
Definition: Subject matter wherein the means controlling the beam of
No. of patents: 4
Last issue date: 06/05/2007


NumberTitleIssue Date
7227434Tuning screw assembly
The present invention relates to a tuning screw assembly comprising a sleeve (100) with internal threads for engaging a tuning screw (200) having external threads. The sleeve comprises a first threaded portion (32) which is axially displaced in ...
06/05/2007
5124664Field emission devices
A klystron device comprises an array of cold-cathode field emission elements arranged to form a distributed amplifier which further comprises a modulation strip line and a catcher strip line. A collector electrode is spaced from the catcher strip line. Th...
06/23/1992
4963291Insulating electromagnetic shielding resin composition
Filler blends of electroconductive particles with electrically non-conductive particles are provided which are useful in making electromagnetic shielding resins for encapsulating electronic devices....
10/16/1990
4178562Cavity resonators with frequency-linear tuning
Cavity resonators, preferably thermocompensated, with a straight-line frequency tuning, tuning elements of which move along a straight-line forced trajectory, and microwave circuits that contain such cavity resonators. At least one tuning element is conne...
12/11/1979
 
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