Electron or ion microscopes; Electron or ion diffraction tubes

Introduced: September 1968

Title

Titles differ between systems:

IPC: Electron or ion microscopes; Electron- or ion-diffraction tubes

CPC: Electron or ion microscopes; Electron or ion diffraction tubes

Full Title

Full titles differ between systems:

IPC:

Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof > Electron or ion microscopes; Electron- or ion-diffraction tubes

CPC:

Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof (H01J33/00, H01J40/00, H01J41/00, H01J47/00, H01J49/00 take precedence) > Electron or ion microscopes; Electron or ion diffraction tubes

Of 7 combined children, 5 exist in both systems.

2 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

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H01J 37/261 +2 CPC CPC only CPC only
H01J 37/266 +1 CPC CPC only CPC only
H01J 37/27 Shadow microscopy since 1980 IPC+CPC Available in IPC and CPC
H01J 37/28 with scanning beams IPC+CPC Available in IPC and CPC
H01J 37/285 Emission microscopes, e.g. field-emission microscopes since 1974 IPC+CPC Available in IPC and CPC
H01J 37/29 Reflection microscopes since 1974 +1 CPC IPC+CPC Available in IPC and CPC
H01J 37/295 Electron or ion diffraction tubes since 1974 +1 CPC IPC+CPC Available in IPC and CPC