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| All Patents in class 493/235 | |||||
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| Number | Date | Patentee | Title | Type | |
| 173,019 | Feb. 01, 1876 | J. Ross, J.F. Josett | Improvement in paper-bag machines | packing and packaging machines | |
| 634,102 | Oct. 03, 1899 | H. Bilgram | Paper-bag machine | packing and packaging machines | |