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Class Information
Number: 347/169
Name: Incremental printing of symbolic information > Electric marking apparatus or processes > By electrochemical > Specific head > Helix drum
Description: Subject matter wherein a raised conductor on a rotatable drum in the form of a spiral is used as a backing electrode to effect scanning of the recording medium when the drum is rotated.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6688724 |
Image forming device and image forming method |
Feb. 10, 2004 |
| 5978001 |
Magnetic brush development roller |
Nov. 2, 1999 |
| 5668588 |
Spiral scanning image recording apparatus and image recording method |
Sep. 16, 1997 |
| 5604525 |
Method and device for reproducing electronically-stored data using a laser-reflecting helical thread on a prom surface |
Feb. 18, 1997 |
| 4205323 |
Paper feed control |
May. 27, 1980 |
| 4159479 |
Electrolytic graphic recorder with cover receiving recording web |
Jun. 26, 1979 |
| 4137538 |
Process and apparatus for compatible wet and dry paper signal recording |
Jan. 30, 1979 |
| 4126869 |
Chaff tray for facsimile recorder |
Nov. 21, 1978 |
| 4080609 |
Electrolytic recorder with additional helical cleaning stylus |
Mar. 21, 1978 |
| 3956754 |
Facsimile apparatus with reciprocating printing bar |
May. 11, 1976 |
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