1980's Plant Patent Counts
month | first | count |
---|
January | PP4,491 | 8 |
February | PP4,499 | 8 |
March | PP4,507 | 8 |
April | PP4,515 | 15 |
May | PP4,530 | 11 |
June | PP4,541 | 17 |
July | PP4,558 | 29 |
August | PP4,587 | 3 |
September | PP4,590 | 9 |
October | PP4,599 | 8 |
November | PP4,607 | 1 |
| Total: | 117 |
1979
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1981