English grammar – states that [a]n article of
a preposition applying to all the members of the series
must either be used only before the first term or else
be repeated before each term.
1) Is one of A, B and C same as: “one of A and one of B and one of c”?
In which case
Valid combinations are: ABC, ABCD Invalid combinations are: AFG, CAJ, AAF
Is "one of A, B and C" same as “any one of A, B and C”? If the above statement is true, then, valid combinations are: “AB, BC, CA, BFG” and invalid combinations are: “AAB, BBH”
Invalid combinations contain multiple occurrence of A, B and C and so they are invalid.
2) One of A, B or C If we go by English grammar rule, then:
Valid are: ABG, CG, ABJ Invalid combinations are: AVY, BCX
3) At least one of A, B and C
Valid combinations are: ABCHJ, BCAKL And invalid combinations are: ABH, BGH, CJK
4)For, "At least one of A, B or C:
Valid combinations are: ABJ, CD, CA Invalid combinations are: ACU, NHB
I am asking this because I have found few references of this is in IPWatchdog. I was still not clear as patent English is quite different in my understanding and I may end up in mess If I follow English grammar but if it can have a different meaning in patent language.