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xc-patents:xc-853 [2019/05/25 00:16] (current)
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 +====== Patent XC-853: 1858-07-13, Instrument, called Cole's Gravitating Plumb and Level  ======
 +
 +^ X Number ​     ^ Date       ^ Inventor ​      ^ City             ^ Title  ^
 +| XC-853 ​      | 1858-07-13 | A. N. Cole | Brockville, ON Canada | Instrument, called Cole's Gravitating Plumb and Level  |
 +
 +===== Comments =====
 +
 +XC patents are Canadian patents issued between 1824 and 1869.
 +
 +===== Information Sources =====
 +
 +(To be filled in.)
 +    ​
 +
 +===== External links =====
 +
  
xc-patents/xc-853.txt ยท Last modified: 2019/05/25 00:16 (external edit)