====== 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 =====