perforating machine वाक्य
उदाहरण वाक्य
मोबाइल
- Philatelists know Henry Archer as the inventor of the first postage stamp perforating machine, which he patented in 1848, to facilitate Postmaster General for ?, 000.
- Archer's patent for his perforating machine ( no . 12, 340 of 1848, dated May 23, 1849 ) was purchased for ?, 000 in June 1853.
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