when were bar codes invented

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
when were bar codes invented	1.29	0.1	7324	84	28
when	0.03	0.5	7263	97	4
were	0.62	0.6	7064	73	4
bar	0.49	0.8	270	20	3
codes	1.91	0.5	4218	31	5
invented	1.66	0.1	601	28	8

Keyword	CPC	PCC	Volume	Score
when were barcodes invented	0.49	1	3259	94
when did bar codes begin on products	1.92	0.1	7505	19
who invented the bar code system	1.74	0.3	5154	68
who developed the bar code	0.48	0.2	6681	19
when did bar coding start	0.46	0.7	9405	65
inventor of bar code	1.2	0.9	5991	57
the first bar code	0.77	0.7	433	56
bar codes country of origin	0.66	1	9000	31
when was the barcode invented	1.11	0.1	6304	5
when was the barcode introduced	0.16	0.8	1558	63
when did the barcode start	0.62	0.9	6489	17
when was the barcode created	0.69	1	5202	70
bar code first commercial use	0.48	0.2	7488	57
why were barcodes invented	0.36	1	3430	86
where were barcodes invented	0.36	0.5	3790	54
what year were barcodes invented	1.87	0.3	2838	1
how were barcodes invented	1.4	0.6	3940	79
when did bar codes appear	0.95	0.6	3160	92
when were bar codes invented	0.7	0.3	4573	9
history of bar codes	0.23	0.7	1539	46
who invented bar codes	0.59	0.3	5162	52
when did barcodes first appear on products	0.33	0.9	256	2
first product to have a bar code	1.71	0.1	2919	78
first bar coded product	0.62	0.1	4574	53
first product to have bar coding	0.06	0.1	7970	84