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Pipedia Dunhill Dating Guide: Difference between revisions
→1341418/20
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* From ''''27 up to '29''' the patent number was preceded by '''"U.S.PATENT"'''. | * From ''''27 up to '29''' the patent number was preceded by '''"U.S.PATENT"'''. | ||
* Loring defends a hypothesis that this patent was also applied in the WWII period without date code or any other nomenclature, like the inner tube, for example. Using the '''"PATENT No. 1341418/20"''' stamp '''from 1941 up to 1943'''. See more about it [[WWII Phase|here]]. | * Loring defends a hypothesis that this patent was also applied in the WWII period without date code or any other nomenclature, like the inner tube, for example. Using the '''"PATENT No. 1341418/20"''' stamp, '''from 1941 up to 1943'''. See more about it [[WWII Phase|here]]. | ||
Sometimes the patent was stamped without any date code. See if there are any additional details that can help you figure out an approximate date [[#Triggers|'''here''']]. | Sometimes the patent was stamped without any date code. See if there are any additional details that can help you figure out an approximate date [[#Triggers|'''here''']]. | ||