5,741
edits
(→417574) |
|||
Line 312: | Line 312: | ||
<span style="color:#800000">['''1932 up to 1935''']</span> The patent for Dunhill's aluminum [https://pipedia.org/images/d/d1/PA3104-900x900.jpg Inner Tubes] (probably), and the country where it was registered is currently unknown.<br> | <span style="color:#800000">['''1932 up to 1935''']</span> The patent for Dunhill's aluminum [https://pipedia.org/images/d/d1/PA3104-900x900.jpg Inner Tubes] (probably), and the country where it was registered is currently unknown.<br> | ||
The date code is just after the patent number (sometimes after ENGLAND): ''' | The date code is just after the patent number (sometimes after ENGLAND): '''1920 +: <span style="font-size:small"> <u>12</u>, <u>13</u>, <u>14</u> and <u>15</u> and</span>''' (they are smaller and underscored). | ||
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''']]. | ||
Line 319: | Line 319: | ||
---- | ---- | ||
---- | ---- | ||
====PATENTED 1932==== | ====PATENTED 1932==== | ||