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IPC Subgroup
G03B 27/46

for automatic sequential copying of different originals, e.g. enlargers, roll film printers

Introduced: September 1968

Last revised: January 2006

Full Title

Photographic printing apparatus > Projection printing apparatus, e.g. enlarger, copying camera > for automatic sequential copying of different originals, e.g. enlargers, roll film printers

Classification Context

Section:
PHYSICS
Class:
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
Subclass:
APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR

4 direct subcodes

Child Classifications

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  • G03B 27/465 at different positions of the same strip, e.g. microfilm
  • G03B 27/47 at different positions of the same sheet, e.g. microfiche
  • G03B 27/475 copying cinematographic film
  • G03B 27/48 with original in the form of a film strip moving continuously and compensation for consequent image movement

Top Applicants

Top 10 applicants by patent filingsfor class G03, 2013–2023, worldwide · Source: EPO PATSTAT

  1. CANON 31,416
  2. CANON JP 17,469
  3. KYOCERA DOCUMENT SOLUTIONS 9,845
  4. RICOH COMPANY 9,807
  5. ASML NETHERLANDS NL 9,427
  6. FUJIFILM JP 7,225
  7. KONICA MINOLTA CORPORATION 7,216
  8. FUJI XEROX COMPANY 5,711
  9. CARL ZEISS SMT DE 4,971
  10. RICOH COMPANY JP 4,123