when were pop top cans invented

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
when were pop top cans invented	1.27	0.1	1345	80	31
when	0.89	0.9	7524	61	4
were	0.77	0.9	285	57	4
pop	0.82	0.4	6732	67	3
top	0.3	0.7	2804	11	3
cans	1.04	0.4	5887	85	4
invented	0.01	0.1	7533	43	8

Keyword	CPC	PCC	Volume	Score
when were pop top cans invented	1.64	0.9	1956	95
when was the pop top can invented	0.25	0.2	3228	85
when did pop top cans come out	1.26	1	3327	53
who invented the pop top can	1.12	1	6574	56
inventor of pop top for cans	1.85	0.6	7579	7
invention of the pop top can	0.94	0.4	641	45
when were pop top cans replaced	0.83	0.5	8776	49
when did beer cans get pop tops	0.29	0.8	3941	95
when were cans invented	0.85	0.2	7109	18
old pop top beer cans	1.67	0.8	5451	32
pop top soda can history	0.05	0.3	8690	53
when did flip top cans come out	0.69	0.1	6749	1
when did pop tops start	1.82	1	7998	3
first pop top beer can	1.17	0.6	7544	29
how pop cans are made	0.49	0.9	3441	45