| Clue | Source | Date |
|---|---|---|
| Plant activity: Abbr | LA Times Daily | 25 Dec 2021 |
| It increases during plant growth: Abbr | LA Times Daily | 19 Feb 2016 |
| Factory work: Abbr | Newsday | 22 Feb 2015 |
| Econ. sector | New York Times | 08 Jan 2015 |
| Factory work: Abbr. | ||
| Econ. sector | ||
| Plant activity: Abbr. | ||
| One of the M's of 3M: Abbr. | ||
| Plant production: Abbr. | ||
| Factory activity (abbr.) | ||
| Plant activity: Abbr. | ||
| Abbr. before "Co." in some company names | ||
| Plant goings-on (abbr.) | ||
| Factory work: Abbr. | ||
| Factory work: Abbr. | ||
| Plant activity, briefly | ||
| Pt. of 3M | ||
| Industrial activity (abbr.) | ||
| Prod. of goods | ||
| Indsl. activity | ||
| Big business: Abbr. | ||
| Trade paper abbreviation. | ||
| Type of business: Abbr. | ||
| Business abbreviation. |