G06M 3/14
Counters with additional facilities: for registering difference of positive and negative actuations
Official title: for registering difference of positive and negative actuations
G06M3/14 (Counters with additional facilities: for registering difference of positive and negative actuations) appears on 5 US grants and 0 published applications in this corpus.
Search patents in G06M- Granted patents
- 5
- Published applications
- 0
- Assignees
- 4
- Inventors
- 5
- Latest grant
- 10 Oct 1989
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Electromechanical pulse counter10 Oct 1989US 4,873,706 A
- Tape recorder with display showing tape travel direction8 Jun 1982US 4,334,149 AOlympus Optical Co., Ltd.
- Apparatus for the automatic counting of passengers22 Feb 1977US 4,009,389 AAktiebolaget Almex
- Indexing apparatus for dictating and transcribing systems12 Oct 1976US 3,986,004 ADictaphone Corporation
- Reversible measuring means21 Sep 1976US 3,982,107 AAmerican Electronic Laboratories, Inc.
No published applications in this class yet.
Most cited
By later US patents
- Apparatus for the automatic counting of passengers27US 4,009,389 AAktiebolaget Almex · 1977
- Reversible measuring means15US 3,982,107 AAmerican Electronic Laboratories, Inc. · 1976
- Electromechanical pulse counter15US 4,873,706 A1989
- Indexing apparatus for dictating and transcribing systems2US 3,986,004 ADictaphone Corporation · 1976
- Tape recorder with display showing tape travel direction1US 4,334,149 AOlympus Optical Co., Ltd. · 1982