| Date | 1876 |
| Author | Bausch |
| Contribution | Began factory production methods for microscopes. |
| Reference | Richards |
| Notes | This was after he had seen exhibition of numerous microscopes in Philadelphia. O. W. Richards considered this the beginning of the end of small shops and custom-made instruments (a trend hastened by the death of several leading makers). |
| Category | Microscopy |
| Pathogen Class | General |
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