1950's Plant Patent Counts

monthfirstcount
JanuaryPP9118
FebruaryPP9197
MarchPP9264
AprilPP9308
MayPP9388
JunePP94611
JulyPP95812
AugustPP9708
SeptemberPP9784
OctoberPP9824
NovemberPP98610
DecemberPP9965
 Total:89

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