Pipedia Dunhill Dating Guide: Difference between revisions

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====U.S.PATENTS 1341418/20&1861910/32====
====U.S.PATENTS 1341418/20&1861910/32====


<span style="color:#800000">['''1932 up to 1934''']</span> Patents for Dunhill's [https://pipedia.org/images/2/2d/Screen_Shot_2563-06-24_at_11.24.38.png Oil Treatment/Sandblasting] and [https://pipedia.org/images/3/32/Innerwflange.jpeg Inner Tubes with flange], registered in '''United States'''.<br>
<span style="color:#800000">['''1932 up to 1934''']</span> Patents for Dunhill's [https://pipedia.org/images/2/2d/Screen_Shot_2563-06-24_at_11.24.38.png Oil Treatment/Sandblasting] and [https://pipedia.org/images/3/34/DunVernon16.jpg Dunhill's Vernon fitment], registered in '''United States'''.<br>


The date code is just after the patent number (sometimes after ENGLAND): '''1930 +: <span style="font-size:small"> <u>12</u>, <u>13</u> and <u>14</u></span>''' (it is smaller and underscored).
The date code is just after the patent number (sometimes after ENGLAND): '''1930 +: <span style="font-size:small"> <u>12</u>, <u>13</u> and <u>14</u></span>''' (it is smaller and underscored).


* In early '''1932''' was stamped '''"U.S.PATENTS 1341418/20&PAT.PENDING"''' before the patent for Inner Tube is granted (which occurred in the same year).
* In early '''1932''' was stamped '''"U.S.PATENTS 1341418/20&PAT.PENDING"''' before the patent for Vernon fitment is granted (which occurred in the same year).


* "MADE IN ENGLAND" stamped on pipes intended for export, in these cases, stamped DUNHILL'S "SHELL" (without "Briar").
* "MADE IN ENGLAND" stamped on pipes intended for export, in these cases, stamped DUNHILL'S "SHELL" (without "Briar").