1956's Plant Patent Counts
| month | first | count |
|---|
| January | PP1,442 | 14 |
| February | PP1,456 | 1 |
| March | PP1,457 | 10 |
| April | PP1,467 | 5 |
| May | PP1,472 | 9 |
| June | PP1,481 | 11 |
| July | PP1,492 | 13 |
| August | PP1,505 | 4 |
| September | PP1,509 | 13 |
| October | PP1,522 | 4 |
| November | PP1,526 | 6 |
| December | PP1,532 | 11 |
| | Total: | 101 |
1955
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1957