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Class Information
Number: 250/222R
Name: Radiant energy >
Description:

Sub-classes under this class:

Class Number	Class Name	Patents
250/200	Photocells; circuits and apparatus	87
250/250	Radio and microwave absorption wavemeters	36
250/251	Electrically neutral molecular or atomic beam devices and methods	417
250/252.1	Calibration or standardization methods	889
250/253	Geological testing or irradiation	257
250/271	Coded record and readers; invisible radiant energy type	75
250/281	Ionic separation or analysis	1,396
250/301	Methods of determining oil presence, contamination or concentration	109
250/302	Radiation tracer methods	199
250/304	Methods including separation or nonradiant treatment of test materials	106
250/305	Electron energy analysis	396
250/306	Inspection of solids or liquids by charged particles	1,595
250/315.3	Source with charged plate-type detector	34
250/316.1	With infrared or thermal pattern recording	95
250/324	Corona irradiation	313
250/328	Automatic/serial detection of similar sources	171
250/329	Record projectors	5
250/330	Infrared-to-visible imaging	533
250/335	Cloud or bubble chambers	5
250/336.1	Invisible radiant energy responsive electric signalling	437
250/396R	With charged particle beam deflection or focussing	1,011
250/423R	Ion generation	896
250/428	Fluent material containment, support or transfer means	67
250/453.11	Supported for nonsignalling objects of irradiation (e.g., with conveyor means)	131
250/458.1	Luminophor irradiation	1,224
250/472.1	Invisible radiation responsive nonelectric signalling	127
250/489	Ion collectors	19
250/491.1	Means to align or position an object relative to a source or detector	693
250/492.1	Irradiation of objects or material	1,182
250/493.1	Radiant energy generation and sources	502
250/505.1	Radiation controlling means	538
250/522.1	Source supports	30
250/526	Miscellaneous	33
250/580	Source with recording detector	181
250/900	Optical liquid level sensors	25
250/909	Methods and apparatus ancillary to stimulable phosphor systems	32
250/910	Food sample analysis using invisible radiant energy source	88
250/DIG.1	Passive intrusion detectors	281
250/DIG.2	Radon detection	116