B41L 11/00
Apparatus for directly duplicating from hectographic masters in mirror image, i.e. "wet
Official title: Apparatus for directly duplicating from hectographic masters in mirror image, i.e. "wet duplicators" for producing positive copies
B41L11/00 (Apparatus for directly duplicating from hectographic masters in mirror image, i.e. "wet) appears on 11 US grants and 0 published applications in this corpus.
Search patents in B41L- Granted patents
- 11
- Published applications
- 0
- Assignees
- 8
- Inventors
- 16
- Latest grant
- 15 Jul 1980
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
- B41L 11/02Apparatus for directly duplicating from hectographic masters in mirror image, i.e. "wet3
- B41L 11/12Driving gear3
- B41L 11/14Constructional features of masters2
- B41L 11/08Apparatus for directly duplicating from hectographic masters in mirror image, i.e. "wet1
- B41L 11/10Apparatus for directly duplicating from hectographic masters in mirror image, i.e. "wet0
Recent patents
- Master cards for hectographic printing15 Jul 1980US 4,213,041 AData Card (U.K.) Limited
- Method and apparatus for printing raised ink images8 May 1979US 4,152,986 A
- Card selecting and address printing apparatus6 Jun 1978US 4,092,919 ATanaka Seiki Co., Ltd.
- Print position adjusting apparatus for address printer14 Feb 1978US 4,073,233 AScriptomatic, Inc.
- Transfer-printing apparatus24 Jan 1978US 4,069,754 ATanaka Seiki Co., Ltd.
No published applications in this class yet.
Most cited
By later US patents
- Method and apparatus for printing raised ink images28US 4,152,986 A1979
- Master cards for hectographic printing6US 4,213,041 AData Card (U.K.) Limited · 1980
- Duplicating apparatus3US 3,996,854 AProcedures, Systemes et Methodes P.S.M. (1972) Inc. · 1976
- Addressing machine and variable drag drive therefore3US 4,005,652 ASpeedaddress, Inc. · 1977
- Duplicating machine3US 4,030,412 AHeyer Inc. · 1977