p027
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| p027 [2021/07/24 04:06] – [Status] therblig | p027 [2021/07/26 21:57] – therblig | ||
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| ==== Clips ==== | ==== Clips ==== | ||
| * Ad in //System//, Nov 1907: | * Ad in //System//, Nov 1907: | ||
| - | {{ :: | + | {{ :: |
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| + | *//Concrete System//, pp56 & 57. The latter is not a certain identification and may be another project. | ||
| + | {{ : | ||
| + | {{ : | ||
| ==== Links ==== | ==== Links ==== | ||
| * https:// | * https:// | ||