1940's Plant Patent Counts

monthfirstcount
JanuaryPP3529
FebruaryPP3614
MarchPP3657
AprilPP37213
MayPP38516
JunePP4016
JulyPP4078
AugustPP4154
SeptemberPP4197
OctoberPP4265
NovemberPP4313
DecemberPP4343
 Total:85

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